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fa37b408 | 1 | /* |
6a5490c6 | 2 | * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 Nicira, Inc. |
fa37b408 BP |
3 | * |
4 | * Licensed under the Apache License, Version 2.0 (the "License"); | |
5 | * you may not use this file except in compliance with the License. | |
6 | * You may obtain a copy of the License at: | |
7 | * | |
8 | * http://www.apache.org/licenses/LICENSE-2.0 | |
9 | * | |
10 | * Unless required by applicable law or agreed to in writing, software | |
11 | * distributed under the License is distributed on an "AS IS" BASIS, | |
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
13 | * See the License for the specific language governing permissions and | |
14 | * limitations under the License. | |
15 | */ | |
16 | ||
17 | #include <config.h> | |
18 | #include "ofp-print.h" | |
03e1125c | 19 | #include <ctype.h> |
dc4762ed | 20 | #include <errno.h> |
fa37b408 | 21 | #include <inttypes.h> |
6ca00f6f ETN |
22 | #include <sys/types.h> |
23 | #include <netinet/in.h> | |
b459a924 | 24 | #include <netinet/icmp6.h> |
fa37b408 | 25 | #include <stdlib.h> |
daff3353 | 26 | #include "bundle.h" |
10a24935 | 27 | #include "byte-order.h" |
d8ae4d67 | 28 | #include "classifier.h" |
dc4762ed | 29 | #include "dynamic-string.h" |
75a75043 | 30 | #include "learn.h" |
816fd533 | 31 | #include "meta-flow.h" |
9e1fd49b | 32 | #include "multipath.h" |
6c038611 | 33 | #include "netdev.h" |
b6c9e612 | 34 | #include "nx-match.h" |
18ac06d3 | 35 | #include "id-pool.h" |
f25d0cf3 | 36 | #include "ofp-actions.h" |
dc4762ed | 37 | #include "ofp-errors.h" |
982697a4 | 38 | #include "ofp-msgs.h" |
c5562271 | 39 | #include "ofp-prop.h" |
fa37b408 BP |
40 | #include "ofp-util.h" |
41 | #include "ofpbuf.h" | |
bc65c25a | 42 | #include "openflow/netronome-ext.h" |
fa37b408 BP |
43 | #include "packets.h" |
44 | #include "random.h" | |
6159c531 | 45 | #include "tun-metadata.h" |
4ffd1b43 | 46 | #include "unaligned.h" |
e41a9130 | 47 | #include "type-props.h" |
e6211adc | 48 | #include "openvswitch/vlog.h" |
5deff5aa | 49 | #include "bitmap.h" |
fa37b408 | 50 | |
d98e6007 | 51 | VLOG_DEFINE_THIS_MODULE(ofp_util); |
fa37b408 BP |
52 | |
53 | /* Rate limit for OpenFlow message parse errors. These always indicate a bug | |
54 | * in the peer and so there's not much point in showing a lot of them. */ | |
55 | static struct vlog_rate_limit bad_ofmsg_rl = VLOG_RATE_LIMIT_INIT(1, 5); | |
56 | ||
de7d3c07 SJ |
57 | static enum ofputil_table_vacancy ofputil_decode_table_vacancy( |
58 | ovs_be32 config, enum ofp_version); | |
82c22d34 BP |
59 | static enum ofputil_table_eviction ofputil_decode_table_eviction( |
60 | ovs_be32 config, enum ofp_version); | |
61 | static ovs_be32 ofputil_encode_table_config(enum ofputil_table_miss, | |
62 | enum ofputil_table_eviction, | |
de7d3c07 | 63 | enum ofputil_table_vacancy, |
82c22d34 | 64 | enum ofp_version); |
3c1bb396 | 65 | |
d18cc1ee AA |
66 | static enum ofperr |
67 | ofputil_check_mask(uint16_t type, uint32_t mask) | |
68 | { | |
69 | switch (type) { | |
70 | case OFPACPT_PACKET_IN_SLAVE: | |
71 | case OFPACPT_PACKET_IN_MASTER: | |
72 | if (mask > MAXIMUM_MASK_PACKET_IN) { | |
73 | return OFPERR_OFPACFC_INVALID; | |
74 | } | |
75 | break; | |
76 | ||
77 | case OFPACPT_FLOW_REMOVED_SLAVE: | |
78 | case OFPACPT_FLOW_REMOVED_MASTER: | |
79 | if (mask > MAXIMUM_MASK_FLOW_REMOVED) { | |
80 | return OFPERR_OFPACFC_INVALID; | |
81 | } | |
82 | break; | |
83 | ||
84 | case OFPACPT_PORT_STATUS_SLAVE: | |
85 | case OFPACPT_PORT_STATUS_MASTER: | |
86 | if (mask > MAXIMUM_MASK_PORT_STATUS) { | |
87 | return OFPERR_OFPACFC_INVALID; | |
88 | } | |
89 | break; | |
90 | ||
91 | case OFPACPT_ROLE_STATUS_SLAVE: | |
92 | case OFPACPT_ROLE_STATUS_MASTER: | |
93 | if (mask > MAXIMUM_MASK_ROLE_STATUS) { | |
94 | return OFPERR_OFPACFC_INVALID; | |
95 | } | |
96 | break; | |
97 | ||
98 | case OFPACPT_TABLE_STATUS_SLAVE: | |
99 | case OFPACPT_TABLE_STATUS_MASTER: | |
100 | if ((mask < MINIMUM_MASK_TABLE_STATUS && mask != 0) | | |
101 | (mask > MAXIMUM_MASK_TABLE_STATUS)) { | |
102 | return OFPERR_OFPACFC_INVALID; | |
103 | } | |
104 | break; | |
105 | ||
106 | case OFPACPT_REQUESTFORWARD_SLAVE: | |
107 | case OFPACPT_REQUESTFORWARD_MASTER: | |
108 | if (mask > MAXIMUM_MASK_REQUESTFORWARD) { | |
109 | return OFPERR_OFPACFC_INVALID; | |
110 | } | |
111 | break; | |
112 | } | |
113 | return 0; | |
114 | } | |
115 | ||
0596e897 BP |
116 | /* Given the wildcard bit count in the least-significant 6 of 'wcbits', returns |
117 | * an IP netmask with a 1 in each bit that must match and a 0 in each bit that | |
118 | * is wildcarded. | |
119 | * | |
120 | * The bits in 'wcbits' are in the format used in enum ofp_flow_wildcards: 0 | |
121 | * is exact match, 1 ignores the LSB, 2 ignores the 2 least-significant bits, | |
122 | * ..., 32 and higher wildcard the entire field. This is the *opposite* of the | |
123 | * usual convention where e.g. /24 indicates that 8 bits (not 24 bits) are | |
124 | * wildcarded. */ | |
125 | ovs_be32 | |
126 | ofputil_wcbits_to_netmask(int wcbits) | |
127 | { | |
128 | wcbits &= 0x3f; | |
129 | return wcbits < 32 ? htonl(~((1u << wcbits) - 1)) : 0; | |
130 | } | |
131 | ||
132 | /* Given the IP netmask 'netmask', returns the number of bits of the IP address | |
c08201d6 BP |
133 | * that it wildcards, that is, the number of 0-bits in 'netmask', a number |
134 | * between 0 and 32 inclusive. | |
135 | * | |
136 | * If 'netmask' is not a CIDR netmask (see ip_is_cidr()), the return value will | |
137 | * still be in the valid range but isn't otherwise meaningful. */ | |
0596e897 BP |
138 | int |
139 | ofputil_netmask_to_wcbits(ovs_be32 netmask) | |
140 | { | |
aad29cd1 | 141 | return 32 - ip_count_cidr_bits(netmask); |
0596e897 BP |
142 | } |
143 | ||
eec25dc1 | 144 | /* Converts the OpenFlow 1.0 wildcards in 'ofpfw' (OFPFW10_*) into a |
81a76618 | 145 | * flow_wildcards in 'wc' for use in struct match. It is the caller's |
eec25dc1 BP |
146 | * responsibility to handle the special case where the flow match's dl_vlan is |
147 | * set to OFP_VLAN_NONE. */ | |
7286b1e1 | 148 | void |
eec25dc1 | 149 | ofputil_wildcard_from_ofpfw10(uint32_t ofpfw, struct flow_wildcards *wc) |
d8ae4d67 | 150 | { |
ffe4c74f | 151 | BUILD_ASSERT_DECL(FLOW_WC_SEQ == 35); |
a877206f | 152 | |
81a76618 | 153 | /* Initialize most of wc. */ |
f9ba8dad | 154 | flow_wildcards_init_catchall(wc); |
bad68a99 | 155 | |
0bdc4bec | 156 | if (!(ofpfw & OFPFW10_IN_PORT)) { |
4e022ec0 | 157 | wc->masks.in_port.ofp_port = u16_to_ofp(UINT16_MAX); |
27cafc5f | 158 | } |
5d9499c4 BP |
159 | |
160 | if (!(ofpfw & OFPFW10_NW_TOS)) { | |
26720e24 | 161 | wc->masks.nw_tos |= IP_DSCP_MASK; |
d8ae4d67 | 162 | } |
7257b535 | 163 | |
851d3105 | 164 | if (!(ofpfw & OFPFW10_NW_PROTO)) { |
26720e24 | 165 | wc->masks.nw_proto = UINT8_MAX; |
851d3105 | 166 | } |
26720e24 BP |
167 | wc->masks.nw_src = ofputil_wcbits_to_netmask(ofpfw |
168 | >> OFPFW10_NW_SRC_SHIFT); | |
169 | wc->masks.nw_dst = ofputil_wcbits_to_netmask(ofpfw | |
170 | >> OFPFW10_NW_DST_SHIFT); | |
d8ae4d67 | 171 | |
eec25dc1 | 172 | if (!(ofpfw & OFPFW10_TP_SRC)) { |
b8266395 | 173 | wc->masks.tp_src = OVS_BE16_MAX; |
73f33563 | 174 | } |
eec25dc1 | 175 | if (!(ofpfw & OFPFW10_TP_DST)) { |
b8266395 | 176 | wc->masks.tp_dst = OVS_BE16_MAX; |
73f33563 BP |
177 | } |
178 | ||
eec25dc1 | 179 | if (!(ofpfw & OFPFW10_DL_SRC)) { |
74ff3298 | 180 | WC_MASK_FIELD(wc, dl_src); |
73c0ce34 | 181 | } |
eec25dc1 | 182 | if (!(ofpfw & OFPFW10_DL_DST)) { |
74ff3298 | 183 | WC_MASK_FIELD(wc, dl_dst); |
d8ae4d67 | 184 | } |
e2170cff | 185 | if (!(ofpfw & OFPFW10_DL_TYPE)) { |
b8266395 | 186 | wc->masks.dl_type = OVS_BE16_MAX; |
e2170cff | 187 | } |
d8ae4d67 | 188 | |
eb6f28db | 189 | /* VLAN TCI mask. */ |
eec25dc1 | 190 | if (!(ofpfw & OFPFW10_DL_VLAN_PCP)) { |
26720e24 | 191 | wc->masks.vlan_tci |= htons(VLAN_PCP_MASK | VLAN_CFI); |
eb6f28db | 192 | } |
eec25dc1 | 193 | if (!(ofpfw & OFPFW10_DL_VLAN)) { |
26720e24 | 194 | wc->masks.vlan_tci |= htons(VLAN_VID_MASK | VLAN_CFI); |
eb6f28db BP |
195 | } |
196 | } | |
197 | ||
81a76618 | 198 | /* Converts the ofp10_match in 'ofmatch' into a struct match in 'match'. */ |
eb6f28db | 199 | void |
81a76618 BP |
200 | ofputil_match_from_ofp10_match(const struct ofp10_match *ofmatch, |
201 | struct match *match) | |
202 | { | |
203 | uint32_t ofpfw = ntohl(ofmatch->wildcards) & OFPFW10_ALL; | |
204 | ||
205 | /* Initialize match->wc. */ | |
296e07ac | 206 | memset(&match->flow, 0, sizeof match->flow); |
81a76618 BP |
207 | ofputil_wildcard_from_ofpfw10(ofpfw, &match->wc); |
208 | ||
209 | /* Initialize most of match->flow. */ | |
210 | match->flow.nw_src = ofmatch->nw_src; | |
211 | match->flow.nw_dst = ofmatch->nw_dst; | |
4e022ec0 | 212 | match->flow.in_port.ofp_port = u16_to_ofp(ntohs(ofmatch->in_port)); |
81a76618 BP |
213 | match->flow.dl_type = ofputil_dl_type_from_openflow(ofmatch->dl_type); |
214 | match->flow.tp_src = ofmatch->tp_src; | |
215 | match->flow.tp_dst = ofmatch->tp_dst; | |
74ff3298 JR |
216 | match->flow.dl_src = ofmatch->dl_src; |
217 | match->flow.dl_dst = ofmatch->dl_dst; | |
81a76618 BP |
218 | match->flow.nw_tos = ofmatch->nw_tos & IP_DSCP_MASK; |
219 | match->flow.nw_proto = ofmatch->nw_proto; | |
d8ae4d67 | 220 | |
66642cb4 | 221 | /* Translate VLANs. */ |
0c436519 | 222 | if (!(ofpfw & OFPFW10_DL_VLAN) && |
81a76618 | 223 | ofmatch->dl_vlan == htons(OFP10_VLAN_NONE)) { |
47271d0d BP |
224 | /* Match only packets without 802.1Q header. |
225 | * | |
eec25dc1 | 226 | * When OFPFW10_DL_VLAN_PCP is wildcarded, this is obviously correct. |
47271d0d | 227 | * |
eec25dc1 | 228 | * If OFPFW10_DL_VLAN_PCP is matched, the flow match is contradictory, |
47271d0d BP |
229 | * because we can't have a specific PCP without an 802.1Q header. |
230 | * However, older versions of OVS treated this as matching packets | |
231 | * withut an 802.1Q header, so we do here too. */ | |
81a76618 BP |
232 | match->flow.vlan_tci = htons(0); |
233 | match->wc.masks.vlan_tci = htons(0xffff); | |
47271d0d BP |
234 | } else { |
235 | ovs_be16 vid, pcp, tci; | |
bf062576 | 236 | uint16_t hpcp; |
47271d0d | 237 | |
81a76618 | 238 | vid = ofmatch->dl_vlan & htons(VLAN_VID_MASK); |
bf062576 YT |
239 | hpcp = (ofmatch->dl_vlan_pcp << VLAN_PCP_SHIFT) & VLAN_PCP_MASK; |
240 | pcp = htons(hpcp); | |
47271d0d | 241 | tci = vid | pcp | htons(VLAN_CFI); |
81a76618 | 242 | match->flow.vlan_tci = tci & match->wc.masks.vlan_tci; |
66642cb4 BP |
243 | } |
244 | ||
d8ae4d67 | 245 | /* Clean up. */ |
81a76618 | 246 | match_zero_wildcarded_fields(match); |
d8ae4d67 BP |
247 | } |
248 | ||
81a76618 | 249 | /* Convert 'match' into the OpenFlow 1.0 match structure 'ofmatch'. */ |
d8ae4d67 | 250 | void |
81a76618 BP |
251 | ofputil_match_to_ofp10_match(const struct match *match, |
252 | struct ofp10_match *ofmatch) | |
d8ae4d67 | 253 | { |
81a76618 | 254 | const struct flow_wildcards *wc = &match->wc; |
eeba8e4f | 255 | uint32_t ofpfw; |
d8ae4d67 | 256 | |
66642cb4 | 257 | /* Figure out most OpenFlow wildcards. */ |
27cafc5f | 258 | ofpfw = 0; |
4e022ec0 | 259 | if (!wc->masks.in_port.ofp_port) { |
27cafc5f BP |
260 | ofpfw |= OFPFW10_IN_PORT; |
261 | } | |
26720e24 | 262 | if (!wc->masks.dl_type) { |
27cafc5f BP |
263 | ofpfw |= OFPFW10_DL_TYPE; |
264 | } | |
26720e24 | 265 | if (!wc->masks.nw_proto) { |
27cafc5f BP |
266 | ofpfw |= OFPFW10_NW_PROTO; |
267 | } | |
26720e24 | 268 | ofpfw |= (ofputil_netmask_to_wcbits(wc->masks.nw_src) |
eec25dc1 | 269 | << OFPFW10_NW_SRC_SHIFT); |
26720e24 | 270 | ofpfw |= (ofputil_netmask_to_wcbits(wc->masks.nw_dst) |
eec25dc1 | 271 | << OFPFW10_NW_DST_SHIFT); |
26720e24 | 272 | if (!(wc->masks.nw_tos & IP_DSCP_MASK)) { |
eec25dc1 | 273 | ofpfw |= OFPFW10_NW_TOS; |
d8ae4d67 | 274 | } |
26720e24 | 275 | if (!wc->masks.tp_src) { |
eec25dc1 | 276 | ofpfw |= OFPFW10_TP_SRC; |
73f33563 | 277 | } |
26720e24 | 278 | if (!wc->masks.tp_dst) { |
eec25dc1 | 279 | ofpfw |= OFPFW10_TP_DST; |
73f33563 | 280 | } |
26720e24 | 281 | if (eth_addr_is_zero(wc->masks.dl_src)) { |
eec25dc1 | 282 | ofpfw |= OFPFW10_DL_SRC; |
73c0ce34 | 283 | } |
26720e24 | 284 | if (eth_addr_is_zero(wc->masks.dl_dst)) { |
eec25dc1 | 285 | ofpfw |= OFPFW10_DL_DST; |
73c0ce34 | 286 | } |
ff9d3826 | 287 | |
66642cb4 | 288 | /* Translate VLANs. */ |
81a76618 BP |
289 | ofmatch->dl_vlan = htons(0); |
290 | ofmatch->dl_vlan_pcp = 0; | |
291 | if (match->wc.masks.vlan_tci == htons(0)) { | |
eec25dc1 | 292 | ofpfw |= OFPFW10_DL_VLAN | OFPFW10_DL_VLAN_PCP; |
81a76618 BP |
293 | } else if (match->wc.masks.vlan_tci & htons(VLAN_CFI) |
294 | && !(match->flow.vlan_tci & htons(VLAN_CFI))) { | |
295 | ofmatch->dl_vlan = htons(OFP10_VLAN_NONE); | |
66642cb4 | 296 | } else { |
81a76618 | 297 | if (!(match->wc.masks.vlan_tci & htons(VLAN_VID_MASK))) { |
eec25dc1 | 298 | ofpfw |= OFPFW10_DL_VLAN; |
66642cb4 | 299 | } else { |
81a76618 | 300 | ofmatch->dl_vlan = htons(vlan_tci_to_vid(match->flow.vlan_tci)); |
66642cb4 BP |
301 | } |
302 | ||
81a76618 | 303 | if (!(match->wc.masks.vlan_tci & htons(VLAN_PCP_MASK))) { |
eec25dc1 | 304 | ofpfw |= OFPFW10_DL_VLAN_PCP; |
66642cb4 | 305 | } else { |
81a76618 | 306 | ofmatch->dl_vlan_pcp = vlan_tci_to_pcp(match->flow.vlan_tci); |
66642cb4 BP |
307 | } |
308 | } | |
309 | ||
310 | /* Compose most of the match structure. */ | |
81a76618 | 311 | ofmatch->wildcards = htonl(ofpfw); |
4e022ec0 | 312 | ofmatch->in_port = htons(ofp_to_u16(match->flow.in_port.ofp_port)); |
74ff3298 JR |
313 | ofmatch->dl_src = match->flow.dl_src; |
314 | ofmatch->dl_dst = match->flow.dl_dst; | |
81a76618 BP |
315 | ofmatch->dl_type = ofputil_dl_type_to_openflow(match->flow.dl_type); |
316 | ofmatch->nw_src = match->flow.nw_src; | |
317 | ofmatch->nw_dst = match->flow.nw_dst; | |
318 | ofmatch->nw_tos = match->flow.nw_tos & IP_DSCP_MASK; | |
319 | ofmatch->nw_proto = match->flow.nw_proto; | |
320 | ofmatch->tp_src = match->flow.tp_src; | |
321 | ofmatch->tp_dst = match->flow.tp_dst; | |
322 | memset(ofmatch->pad1, '\0', sizeof ofmatch->pad1); | |
323 | memset(ofmatch->pad2, '\0', sizeof ofmatch->pad2); | |
d8ae4d67 BP |
324 | } |
325 | ||
aa319503 | 326 | enum ofperr |
81a76618 BP |
327 | ofputil_pull_ofp11_match(struct ofpbuf *buf, struct match *match, |
328 | uint16_t *padded_match_len) | |
aa319503 | 329 | { |
6fd6ed71 | 330 | struct ofp11_match_header *omh = buf->data; |
36a16881 | 331 | uint16_t match_len; |
aa319503 | 332 | |
6fd6ed71 | 333 | if (buf->size < sizeof *omh) { |
aa319503 BP |
334 | return OFPERR_OFPBMC_BAD_LEN; |
335 | } | |
336 | ||
36a16881 SH |
337 | match_len = ntohs(omh->length); |
338 | ||
aa319503 | 339 | switch (ntohs(omh->type)) { |
36a16881 SH |
340 | case OFPMT_STANDARD: { |
341 | struct ofp11_match *om; | |
342 | ||
6fd6ed71 | 343 | if (match_len != sizeof *om || buf->size < sizeof *om) { |
aa319503 BP |
344 | return OFPERR_OFPBMC_BAD_LEN; |
345 | } | |
346 | om = ofpbuf_pull(buf, sizeof *om); | |
36a16881 SH |
347 | if (padded_match_len) { |
348 | *padded_match_len = match_len; | |
349 | } | |
81a76618 | 350 | return ofputil_match_from_ofp11_match(om, match); |
36a16881 SH |
351 | } |
352 | ||
353 | case OFPMT_OXM: | |
354 | if (padded_match_len) { | |
355 | *padded_match_len = ROUND_UP(match_len, 8); | |
356 | } | |
81a76618 | 357 | return oxm_pull_match(buf, match); |
aa319503 BP |
358 | |
359 | default: | |
360 | return OFPERR_OFPBMC_BAD_TYPE; | |
361 | } | |
362 | } | |
363 | ||
3f0f48cf YT |
364 | /* Converts the ofp11_match in 'ofmatch' into a struct match in 'match'. |
365 | * Returns 0 if successful, otherwise an OFPERR_* value. */ | |
410698cf | 366 | enum ofperr |
81a76618 BP |
367 | ofputil_match_from_ofp11_match(const struct ofp11_match *ofmatch, |
368 | struct match *match) | |
410698cf | 369 | { |
81a76618 | 370 | uint16_t wc = ntohl(ofmatch->wildcards); |
8087f5ff | 371 | bool ipv4, arp, rarp; |
410698cf | 372 | |
81a76618 | 373 | match_init_catchall(match); |
410698cf BP |
374 | |
375 | if (!(wc & OFPFW11_IN_PORT)) { | |
4e022ec0 | 376 | ofp_port_t ofp_port; |
410698cf BP |
377 | enum ofperr error; |
378 | ||
81a76618 | 379 | error = ofputil_port_from_ofp11(ofmatch->in_port, &ofp_port); |
410698cf BP |
380 | if (error) { |
381 | return OFPERR_OFPBMC_BAD_VALUE; | |
382 | } | |
81a76618 | 383 | match_set_in_port(match, ofp_port); |
410698cf BP |
384 | } |
385 | ||
74ff3298 JR |
386 | match_set_dl_src_masked(match, ofmatch->dl_src, |
387 | eth_addr_invert(ofmatch->dl_src_mask)); | |
388 | match_set_dl_dst_masked(match, ofmatch->dl_dst, | |
389 | eth_addr_invert(ofmatch->dl_dst_mask)); | |
410698cf BP |
390 | |
391 | if (!(wc & OFPFW11_DL_VLAN)) { | |
81a76618 | 392 | if (ofmatch->dl_vlan == htons(OFPVID11_NONE)) { |
410698cf | 393 | /* Match only packets without a VLAN tag. */ |
81a76618 | 394 | match->flow.vlan_tci = htons(0); |
b8266395 | 395 | match->wc.masks.vlan_tci = OVS_BE16_MAX; |
410698cf | 396 | } else { |
81a76618 | 397 | if (ofmatch->dl_vlan == htons(OFPVID11_ANY)) { |
410698cf | 398 | /* Match any packet with a VLAN tag regardless of VID. */ |
81a76618 BP |
399 | match->flow.vlan_tci = htons(VLAN_CFI); |
400 | match->wc.masks.vlan_tci = htons(VLAN_CFI); | |
401 | } else if (ntohs(ofmatch->dl_vlan) < 4096) { | |
410698cf | 402 | /* Match only packets with the specified VLAN VID. */ |
81a76618 BP |
403 | match->flow.vlan_tci = htons(VLAN_CFI) | ofmatch->dl_vlan; |
404 | match->wc.masks.vlan_tci = htons(VLAN_CFI | VLAN_VID_MASK); | |
410698cf BP |
405 | } else { |
406 | /* Invalid VID. */ | |
407 | return OFPERR_OFPBMC_BAD_VALUE; | |
408 | } | |
409 | ||
410 | if (!(wc & OFPFW11_DL_VLAN_PCP)) { | |
81a76618 BP |
411 | if (ofmatch->dl_vlan_pcp <= 7) { |
412 | match->flow.vlan_tci |= htons(ofmatch->dl_vlan_pcp | |
413 | << VLAN_PCP_SHIFT); | |
414 | match->wc.masks.vlan_tci |= htons(VLAN_PCP_MASK); | |
410698cf BP |
415 | } else { |
416 | /* Invalid PCP. */ | |
417 | return OFPERR_OFPBMC_BAD_VALUE; | |
418 | } | |
419 | } | |
420 | } | |
421 | } | |
422 | ||
423 | if (!(wc & OFPFW11_DL_TYPE)) { | |
81a76618 BP |
424 | match_set_dl_type(match, |
425 | ofputil_dl_type_from_openflow(ofmatch->dl_type)); | |
410698cf BP |
426 | } |
427 | ||
81a76618 BP |
428 | ipv4 = match->flow.dl_type == htons(ETH_TYPE_IP); |
429 | arp = match->flow.dl_type == htons(ETH_TYPE_ARP); | |
8087f5ff | 430 | rarp = match->flow.dl_type == htons(ETH_TYPE_RARP); |
410698cf BP |
431 | |
432 | if (ipv4 && !(wc & OFPFW11_NW_TOS)) { | |
81a76618 | 433 | if (ofmatch->nw_tos & ~IP_DSCP_MASK) { |
410698cf BP |
434 | /* Invalid TOS. */ |
435 | return OFPERR_OFPBMC_BAD_VALUE; | |
436 | } | |
437 | ||
81a76618 | 438 | match_set_nw_dscp(match, ofmatch->nw_tos); |
410698cf BP |
439 | } |
440 | ||
8087f5ff | 441 | if (ipv4 || arp || rarp) { |
410698cf | 442 | if (!(wc & OFPFW11_NW_PROTO)) { |
81a76618 | 443 | match_set_nw_proto(match, ofmatch->nw_proto); |
410698cf | 444 | } |
81a76618 BP |
445 | match_set_nw_src_masked(match, ofmatch->nw_src, ~ofmatch->nw_src_mask); |
446 | match_set_nw_dst_masked(match, ofmatch->nw_dst, ~ofmatch->nw_dst_mask); | |
410698cf BP |
447 | } |
448 | ||
449 | #define OFPFW11_TP_ALL (OFPFW11_TP_SRC | OFPFW11_TP_DST) | |
450 | if (ipv4 && (wc & OFPFW11_TP_ALL) != OFPFW11_TP_ALL) { | |
81a76618 | 451 | switch (match->flow.nw_proto) { |
410698cf BP |
452 | case IPPROTO_ICMP: |
453 | /* "A.2.3 Flow Match Structures" in OF1.1 says: | |
454 | * | |
455 | * The tp_src and tp_dst fields will be ignored unless the | |
456 | * network protocol specified is as TCP, UDP or SCTP. | |
457 | * | |
458 | * but I'm pretty sure we should support ICMP too, otherwise | |
459 | * that's a regression from OF1.0. */ | |
460 | if (!(wc & OFPFW11_TP_SRC)) { | |
81a76618 | 461 | uint16_t icmp_type = ntohs(ofmatch->tp_src); |
410698cf | 462 | if (icmp_type < 0x100) { |
81a76618 | 463 | match_set_icmp_type(match, icmp_type); |
410698cf BP |
464 | } else { |
465 | return OFPERR_OFPBMC_BAD_FIELD; | |
466 | } | |
467 | } | |
468 | if (!(wc & OFPFW11_TP_DST)) { | |
81a76618 | 469 | uint16_t icmp_code = ntohs(ofmatch->tp_dst); |
410698cf | 470 | if (icmp_code < 0x100) { |
81a76618 | 471 | match_set_icmp_code(match, icmp_code); |
410698cf BP |
472 | } else { |
473 | return OFPERR_OFPBMC_BAD_FIELD; | |
474 | } | |
475 | } | |
476 | break; | |
477 | ||
478 | case IPPROTO_TCP: | |
479 | case IPPROTO_UDP: | |
0d56eaf2 | 480 | case IPPROTO_SCTP: |
410698cf | 481 | if (!(wc & (OFPFW11_TP_SRC))) { |
81a76618 | 482 | match_set_tp_src(match, ofmatch->tp_src); |
410698cf BP |
483 | } |
484 | if (!(wc & (OFPFW11_TP_DST))) { | |
81a76618 | 485 | match_set_tp_dst(match, ofmatch->tp_dst); |
410698cf BP |
486 | } |
487 | break; | |
488 | ||
410698cf BP |
489 | default: |
490 | /* OF1.1 says explicitly to ignore this. */ | |
491 | break; | |
492 | } | |
493 | } | |
494 | ||
b02475c5 | 495 | if (eth_type_mpls(match->flow.dl_type)) { |
097d4939 | 496 | if (!(wc & OFPFW11_MPLS_LABEL)) { |
8bfd0fda | 497 | match_set_mpls_label(match, 0, ofmatch->mpls_label); |
097d4939 JR |
498 | } |
499 | if (!(wc & OFPFW11_MPLS_TC)) { | |
8bfd0fda | 500 | match_set_mpls_tc(match, 0, ofmatch->mpls_tc); |
410698cf BP |
501 | } |
502 | } | |
503 | ||
81a76618 BP |
504 | match_set_metadata_masked(match, ofmatch->metadata, |
505 | ~ofmatch->metadata_mask); | |
410698cf BP |
506 | |
507 | return 0; | |
508 | } | |
509 | ||
81a76618 | 510 | /* Convert 'match' into the OpenFlow 1.1 match structure 'ofmatch'. */ |
410698cf | 511 | void |
81a76618 BP |
512 | ofputil_match_to_ofp11_match(const struct match *match, |
513 | struct ofp11_match *ofmatch) | |
410698cf BP |
514 | { |
515 | uint32_t wc = 0; | |
410698cf | 516 | |
81a76618 BP |
517 | memset(ofmatch, 0, sizeof *ofmatch); |
518 | ofmatch->omh.type = htons(OFPMT_STANDARD); | |
519 | ofmatch->omh.length = htons(OFPMT11_STANDARD_LENGTH); | |
410698cf | 520 | |
4e022ec0 | 521 | if (!match->wc.masks.in_port.ofp_port) { |
410698cf BP |
522 | wc |= OFPFW11_IN_PORT; |
523 | } else { | |
4e022ec0 | 524 | ofmatch->in_port = ofputil_port_to_ofp11(match->flow.in_port.ofp_port); |
410698cf BP |
525 | } |
526 | ||
74ff3298 JR |
527 | ofmatch->dl_src = match->flow.dl_src; |
528 | ofmatch->dl_src_mask = eth_addr_invert(match->wc.masks.dl_src); | |
529 | ofmatch->dl_dst = match->flow.dl_dst; | |
530 | ofmatch->dl_dst_mask = eth_addr_invert(match->wc.masks.dl_dst); | |
410698cf | 531 | |
81a76618 | 532 | if (match->wc.masks.vlan_tci == htons(0)) { |
410698cf | 533 | wc |= OFPFW11_DL_VLAN | OFPFW11_DL_VLAN_PCP; |
81a76618 BP |
534 | } else if (match->wc.masks.vlan_tci & htons(VLAN_CFI) |
535 | && !(match->flow.vlan_tci & htons(VLAN_CFI))) { | |
536 | ofmatch->dl_vlan = htons(OFPVID11_NONE); | |
410698cf BP |
537 | wc |= OFPFW11_DL_VLAN_PCP; |
538 | } else { | |
81a76618 BP |
539 | if (!(match->wc.masks.vlan_tci & htons(VLAN_VID_MASK))) { |
540 | ofmatch->dl_vlan = htons(OFPVID11_ANY); | |
410698cf | 541 | } else { |
81a76618 | 542 | ofmatch->dl_vlan = htons(vlan_tci_to_vid(match->flow.vlan_tci)); |
410698cf BP |
543 | } |
544 | ||
81a76618 | 545 | if (!(match->wc.masks.vlan_tci & htons(VLAN_PCP_MASK))) { |
410698cf BP |
546 | wc |= OFPFW11_DL_VLAN_PCP; |
547 | } else { | |
81a76618 | 548 | ofmatch->dl_vlan_pcp = vlan_tci_to_pcp(match->flow.vlan_tci); |
410698cf BP |
549 | } |
550 | } | |
551 | ||
81a76618 | 552 | if (!match->wc.masks.dl_type) { |
410698cf BP |
553 | wc |= OFPFW11_DL_TYPE; |
554 | } else { | |
81a76618 | 555 | ofmatch->dl_type = ofputil_dl_type_to_openflow(match->flow.dl_type); |
410698cf BP |
556 | } |
557 | ||
81a76618 | 558 | if (!(match->wc.masks.nw_tos & IP_DSCP_MASK)) { |
410698cf BP |
559 | wc |= OFPFW11_NW_TOS; |
560 | } else { | |
81a76618 | 561 | ofmatch->nw_tos = match->flow.nw_tos & IP_DSCP_MASK; |
410698cf BP |
562 | } |
563 | ||
81a76618 | 564 | if (!match->wc.masks.nw_proto) { |
410698cf BP |
565 | wc |= OFPFW11_NW_PROTO; |
566 | } else { | |
81a76618 | 567 | ofmatch->nw_proto = match->flow.nw_proto; |
410698cf BP |
568 | } |
569 | ||
81a76618 BP |
570 | ofmatch->nw_src = match->flow.nw_src; |
571 | ofmatch->nw_src_mask = ~match->wc.masks.nw_src; | |
572 | ofmatch->nw_dst = match->flow.nw_dst; | |
573 | ofmatch->nw_dst_mask = ~match->wc.masks.nw_dst; | |
410698cf | 574 | |
81a76618 | 575 | if (!match->wc.masks.tp_src) { |
410698cf BP |
576 | wc |= OFPFW11_TP_SRC; |
577 | } else { | |
81a76618 | 578 | ofmatch->tp_src = match->flow.tp_src; |
410698cf BP |
579 | } |
580 | ||
81a76618 | 581 | if (!match->wc.masks.tp_dst) { |
410698cf BP |
582 | wc |= OFPFW11_TP_DST; |
583 | } else { | |
81a76618 | 584 | ofmatch->tp_dst = match->flow.tp_dst; |
410698cf BP |
585 | } |
586 | ||
8bfd0fda | 587 | if (!(match->wc.masks.mpls_lse[0] & htonl(MPLS_LABEL_MASK))) { |
097d4939 JR |
588 | wc |= OFPFW11_MPLS_LABEL; |
589 | } else { | |
8bfd0fda BP |
590 | ofmatch->mpls_label = htonl(mpls_lse_to_label( |
591 | match->flow.mpls_lse[0])); | |
097d4939 JR |
592 | } |
593 | ||
8bfd0fda | 594 | if (!(match->wc.masks.mpls_lse[0] & htonl(MPLS_TC_MASK))) { |
097d4939 JR |
595 | wc |= OFPFW11_MPLS_TC; |
596 | } else { | |
8bfd0fda | 597 | ofmatch->mpls_tc = mpls_lse_to_tc(match->flow.mpls_lse[0]); |
097d4939 | 598 | } |
410698cf | 599 | |
81a76618 BP |
600 | ofmatch->metadata = match->flow.metadata; |
601 | ofmatch->metadata_mask = ~match->wc.masks.metadata; | |
410698cf | 602 | |
81a76618 | 603 | ofmatch->wildcards = htonl(wc); |
410698cf BP |
604 | } |
605 | ||
75fa58f8 BP |
606 | /* Returns the "typical" length of a match for 'protocol', for use in |
607 | * estimating space to preallocate. */ | |
608 | int | |
609 | ofputil_match_typical_len(enum ofputil_protocol protocol) | |
610 | { | |
611 | switch (protocol) { | |
612 | case OFPUTIL_P_OF10_STD: | |
613 | case OFPUTIL_P_OF10_STD_TID: | |
614 | return sizeof(struct ofp10_match); | |
615 | ||
616 | case OFPUTIL_P_OF10_NXM: | |
617 | case OFPUTIL_P_OF10_NXM_TID: | |
618 | return NXM_TYPICAL_LEN; | |
619 | ||
620 | case OFPUTIL_P_OF11_STD: | |
621 | return sizeof(struct ofp11_match); | |
622 | ||
623 | case OFPUTIL_P_OF12_OXM: | |
624 | case OFPUTIL_P_OF13_OXM: | |
c37c0382 | 625 | case OFPUTIL_P_OF14_OXM: |
42dccab5 | 626 | case OFPUTIL_P_OF15_OXM: |
75fa58f8 BP |
627 | return NXM_TYPICAL_LEN; |
628 | ||
629 | default: | |
428b2edd | 630 | OVS_NOT_REACHED(); |
75fa58f8 BP |
631 | } |
632 | } | |
633 | ||
634 | /* Appends to 'b' an struct ofp11_match_header followed by a match that | |
635 | * expresses 'match' properly for 'protocol', plus enough zero bytes to pad the | |
636 | * data appended out to a multiple of 8. 'protocol' must be one that is usable | |
637 | * in OpenFlow 1.1 or later. | |
638 | * | |
639 | * This function can cause 'b''s data to be reallocated. | |
640 | * | |
641 | * Returns the number of bytes appended to 'b', excluding the padding. Never | |
642 | * returns zero. */ | |
643 | int | |
644 | ofputil_put_ofp11_match(struct ofpbuf *b, const struct match *match, | |
645 | enum ofputil_protocol protocol) | |
646 | { | |
647 | switch (protocol) { | |
648 | case OFPUTIL_P_OF10_STD: | |
649 | case OFPUTIL_P_OF10_STD_TID: | |
650 | case OFPUTIL_P_OF10_NXM: | |
651 | case OFPUTIL_P_OF10_NXM_TID: | |
428b2edd | 652 | OVS_NOT_REACHED(); |
75fa58f8 BP |
653 | |
654 | case OFPUTIL_P_OF11_STD: { | |
655 | struct ofp11_match *om; | |
656 | ||
657 | /* Make sure that no padding is needed. */ | |
658 | BUILD_ASSERT_DECL(sizeof *om % 8 == 0); | |
659 | ||
660 | om = ofpbuf_put_uninit(b, sizeof *om); | |
661 | ofputil_match_to_ofp11_match(match, om); | |
662 | return sizeof *om; | |
663 | } | |
664 | ||
665 | case OFPUTIL_P_OF12_OXM: | |
666 | case OFPUTIL_P_OF13_OXM: | |
c37c0382 | 667 | case OFPUTIL_P_OF14_OXM: |
42dccab5 | 668 | case OFPUTIL_P_OF15_OXM: |
9d84066c BP |
669 | return oxm_put_match(b, match, |
670 | ofputil_protocol_to_ofp_version(protocol)); | |
75fa58f8 BP |
671 | } |
672 | ||
428b2edd | 673 | OVS_NOT_REACHED(); |
75fa58f8 BP |
674 | } |
675 | ||
36956a7d | 676 | /* Given a 'dl_type' value in the format used in struct flow, returns the |
eec25dc1 BP |
677 | * corresponding 'dl_type' value for use in an ofp10_match or ofp11_match |
678 | * structure. */ | |
36956a7d BP |
679 | ovs_be16 |
680 | ofputil_dl_type_to_openflow(ovs_be16 flow_dl_type) | |
681 | { | |
682 | return (flow_dl_type == htons(FLOW_DL_TYPE_NONE) | |
683 | ? htons(OFP_DL_TYPE_NOT_ETH_TYPE) | |
684 | : flow_dl_type); | |
685 | } | |
686 | ||
eec25dc1 | 687 | /* Given a 'dl_type' value in the format used in an ofp10_match or ofp11_match |
36956a7d BP |
688 | * structure, returns the corresponding 'dl_type' value for use in struct |
689 | * flow. */ | |
690 | ovs_be16 | |
691 | ofputil_dl_type_from_openflow(ovs_be16 ofp_dl_type) | |
692 | { | |
693 | return (ofp_dl_type == htons(OFP_DL_TYPE_NOT_ETH_TYPE) | |
694 | ? htons(FLOW_DL_TYPE_NONE) | |
695 | : ofp_dl_type); | |
696 | } | |
2e4f5fcf | 697 | \f |
27527aa0 | 698 | /* Protocols. */ |
7fa91113 | 699 | |
27527aa0 BP |
700 | struct proto_abbrev { |
701 | enum ofputil_protocol protocol; | |
702 | const char *name; | |
703 | }; | |
704 | ||
705 | /* Most users really don't care about some of the differences between | |
aa233d57 | 706 | * protocols. These abbreviations help with that. */ |
27527aa0 | 707 | static const struct proto_abbrev proto_abbrevs[] = { |
aa233d57 BP |
708 | { OFPUTIL_P_ANY, "any" }, |
709 | { OFPUTIL_P_OF10_STD_ANY, "OpenFlow10" }, | |
710 | { OFPUTIL_P_OF10_NXM_ANY, "NXM" }, | |
711 | { OFPUTIL_P_ANY_OXM, "OXM" }, | |
27527aa0 BP |
712 | }; |
713 | #define N_PROTO_ABBREVS ARRAY_SIZE(proto_abbrevs) | |
714 | ||
715 | enum ofputil_protocol ofputil_flow_dump_protocols[] = { | |
42dccab5 | 716 | OFPUTIL_P_OF15_OXM, |
c37c0382 | 717 | OFPUTIL_P_OF14_OXM, |
2e1ae200 | 718 | OFPUTIL_P_OF13_OXM, |
8d7785bd | 719 | OFPUTIL_P_OF12_OXM, |
75fa58f8 | 720 | OFPUTIL_P_OF11_STD, |
85813857 BP |
721 | OFPUTIL_P_OF10_NXM, |
722 | OFPUTIL_P_OF10_STD, | |
27527aa0 BP |
723 | }; |
724 | size_t ofputil_n_flow_dump_protocols = ARRAY_SIZE(ofputil_flow_dump_protocols); | |
725 | ||
4f13da56 BP |
726 | /* Returns the set of ofputil_protocols that are supported with the given |
727 | * OpenFlow 'version'. 'version' should normally be an 8-bit OpenFlow version | |
728 | * identifier (e.g. 0x01 for OpenFlow 1.0, 0x02 for OpenFlow 1.1). Returns 0 | |
729 | * if 'version' is not supported or outside the valid range. */ | |
27527aa0 | 730 | enum ofputil_protocol |
4f13da56 | 731 | ofputil_protocols_from_ofp_version(enum ofp_version version) |
27527aa0 BP |
732 | { |
733 | switch (version) { | |
2e3fa633 | 734 | case OFP10_VERSION: |
4f13da56 | 735 | return OFPUTIL_P_OF10_STD_ANY | OFPUTIL_P_OF10_NXM_ANY; |
75fa58f8 BP |
736 | case OFP11_VERSION: |
737 | return OFPUTIL_P_OF11_STD; | |
2e3fa633 | 738 | case OFP12_VERSION: |
85813857 | 739 | return OFPUTIL_P_OF12_OXM; |
2e1ae200 JR |
740 | case OFP13_VERSION: |
741 | return OFPUTIL_P_OF13_OXM; | |
c37c0382 AC |
742 | case OFP14_VERSION: |
743 | return OFPUTIL_P_OF14_OXM; | |
42dccab5 BP |
744 | case OFP15_VERSION: |
745 | return OFPUTIL_P_OF15_OXM; | |
2e3fa633 SH |
746 | default: |
747 | return 0; | |
27527aa0 BP |
748 | } |
749 | } | |
750 | ||
4f13da56 BP |
751 | /* Returns the ofputil_protocol that is initially in effect on an OpenFlow |
752 | * connection that has negotiated the given 'version'. 'version' should | |
753 | * normally be an 8-bit OpenFlow version identifier (e.g. 0x01 for OpenFlow | |
754 | * 1.0, 0x02 for OpenFlow 1.1). Returns 0 if 'version' is not supported or | |
755 | * outside the valid range. */ | |
756 | enum ofputil_protocol | |
757 | ofputil_protocol_from_ofp_version(enum ofp_version version) | |
758 | { | |
759 | return rightmost_1bit(ofputil_protocols_from_ofp_version(version)); | |
760 | } | |
761 | ||
44d3732d | 762 | /* Returns the OpenFlow protocol version number (e.g. OFP10_VERSION, |
2e1ae200 | 763 | * etc.) that corresponds to 'protocol'. */ |
2e3fa633 | 764 | enum ofp_version |
9e1fd49b BP |
765 | ofputil_protocol_to_ofp_version(enum ofputil_protocol protocol) |
766 | { | |
767 | switch (protocol) { | |
85813857 BP |
768 | case OFPUTIL_P_OF10_STD: |
769 | case OFPUTIL_P_OF10_STD_TID: | |
770 | case OFPUTIL_P_OF10_NXM: | |
771 | case OFPUTIL_P_OF10_NXM_TID: | |
9e1fd49b | 772 | return OFP10_VERSION; |
75fa58f8 BP |
773 | case OFPUTIL_P_OF11_STD: |
774 | return OFP11_VERSION; | |
85813857 | 775 | case OFPUTIL_P_OF12_OXM: |
44d3732d | 776 | return OFP12_VERSION; |
2e1ae200 JR |
777 | case OFPUTIL_P_OF13_OXM: |
778 | return OFP13_VERSION; | |
c37c0382 AC |
779 | case OFPUTIL_P_OF14_OXM: |
780 | return OFP14_VERSION; | |
42dccab5 BP |
781 | case OFPUTIL_P_OF15_OXM: |
782 | return OFP15_VERSION; | |
9e1fd49b BP |
783 | } |
784 | ||
428b2edd | 785 | OVS_NOT_REACHED(); |
9e1fd49b BP |
786 | } |
787 | ||
4f13da56 BP |
788 | /* Returns a bitmap of OpenFlow versions that are supported by at |
789 | * least one of the 'protocols'. */ | |
790 | uint32_t | |
791 | ofputil_protocols_to_version_bitmap(enum ofputil_protocol protocols) | |
792 | { | |
793 | uint32_t bitmap = 0; | |
794 | ||
795 | for (; protocols; protocols = zero_rightmost_1bit(protocols)) { | |
796 | enum ofputil_protocol protocol = rightmost_1bit(protocols); | |
797 | ||
798 | bitmap |= 1u << ofputil_protocol_to_ofp_version(protocol); | |
799 | } | |
800 | ||
801 | return bitmap; | |
802 | } | |
803 | ||
804 | /* Returns the set of protocols that are supported on top of the | |
805 | * OpenFlow versions included in 'bitmap'. */ | |
806 | enum ofputil_protocol | |
807 | ofputil_protocols_from_version_bitmap(uint32_t bitmap) | |
808 | { | |
809 | enum ofputil_protocol protocols = 0; | |
810 | ||
811 | for (; bitmap; bitmap = zero_rightmost_1bit(bitmap)) { | |
812 | enum ofp_version version = rightmost_1bit_idx(bitmap); | |
813 | ||
814 | protocols |= ofputil_protocols_from_ofp_version(version); | |
815 | } | |
816 | ||
817 | return protocols; | |
818 | } | |
819 | ||
27527aa0 BP |
820 | /* Returns true if 'protocol' is a single OFPUTIL_P_* value, false |
821 | * otherwise. */ | |
7fa91113 | 822 | bool |
27527aa0 | 823 | ofputil_protocol_is_valid(enum ofputil_protocol protocol) |
7fa91113 | 824 | { |
27527aa0 BP |
825 | return protocol & OFPUTIL_P_ANY && is_pow2(protocol); |
826 | } | |
827 | ||
828 | /* Returns the equivalent of 'protocol' with the Nicira flow_mod_table_id | |
829 | * extension turned on or off if 'enable' is true or false, respectively. | |
830 | * | |
831 | * This extension is only useful for protocols whose "standard" version does | |
832 | * not allow specific tables to be modified. In particular, this is true of | |
833 | * OpenFlow 1.0. In later versions of OpenFlow, a flow_mod request always | |
834 | * specifies a table ID and so there is no need for such an extension. When | |
835 | * 'protocol' is such a protocol that doesn't need a flow_mod_table_id | |
836 | * extension, this function just returns its 'protocol' argument unchanged | |
837 | * regardless of the value of 'enable'. */ | |
838 | enum ofputil_protocol | |
839 | ofputil_protocol_set_tid(enum ofputil_protocol protocol, bool enable) | |
840 | { | |
841 | switch (protocol) { | |
85813857 BP |
842 | case OFPUTIL_P_OF10_STD: |
843 | case OFPUTIL_P_OF10_STD_TID: | |
844 | return enable ? OFPUTIL_P_OF10_STD_TID : OFPUTIL_P_OF10_STD; | |
27527aa0 | 845 | |
85813857 BP |
846 | case OFPUTIL_P_OF10_NXM: |
847 | case OFPUTIL_P_OF10_NXM_TID: | |
848 | return enable ? OFPUTIL_P_OF10_NXM_TID : OFPUTIL_P_OF10_NXM; | |
27527aa0 | 849 | |
75fa58f8 BP |
850 | case OFPUTIL_P_OF11_STD: |
851 | return OFPUTIL_P_OF11_STD; | |
852 | ||
85813857 BP |
853 | case OFPUTIL_P_OF12_OXM: |
854 | return OFPUTIL_P_OF12_OXM; | |
44d3732d | 855 | |
2e1ae200 JR |
856 | case OFPUTIL_P_OF13_OXM: |
857 | return OFPUTIL_P_OF13_OXM; | |
858 | ||
c37c0382 AC |
859 | case OFPUTIL_P_OF14_OXM: |
860 | return OFPUTIL_P_OF14_OXM; | |
861 | ||
42dccab5 BP |
862 | case OFPUTIL_P_OF15_OXM: |
863 | return OFPUTIL_P_OF15_OXM; | |
864 | ||
27527aa0 | 865 | default: |
428b2edd | 866 | OVS_NOT_REACHED(); |
7fa91113 | 867 | } |
27527aa0 | 868 | } |
7fa91113 | 869 | |
27527aa0 BP |
870 | /* Returns the "base" version of 'protocol'. That is, if 'protocol' includes |
871 | * some extension to a standard protocol version, the return value is the | |
872 | * standard version of that protocol without any extension. If 'protocol' is a | |
873 | * standard protocol version, returns 'protocol' unchanged. */ | |
874 | enum ofputil_protocol | |
875 | ofputil_protocol_to_base(enum ofputil_protocol protocol) | |
876 | { | |
877 | return ofputil_protocol_set_tid(protocol, false); | |
7fa91113 BP |
878 | } |
879 | ||
27527aa0 BP |
880 | /* Returns 'new_base' with any extensions taken from 'cur'. */ |
881 | enum ofputil_protocol | |
882 | ofputil_protocol_set_base(enum ofputil_protocol cur, | |
883 | enum ofputil_protocol new_base) | |
7fa91113 | 884 | { |
27527aa0 BP |
885 | bool tid = (cur & OFPUTIL_P_TID) != 0; |
886 | ||
887 | switch (new_base) { | |
85813857 BP |
888 | case OFPUTIL_P_OF10_STD: |
889 | case OFPUTIL_P_OF10_STD_TID: | |
890 | return ofputil_protocol_set_tid(OFPUTIL_P_OF10_STD, tid); | |
27527aa0 | 891 | |
85813857 BP |
892 | case OFPUTIL_P_OF10_NXM: |
893 | case OFPUTIL_P_OF10_NXM_TID: | |
894 | return ofputil_protocol_set_tid(OFPUTIL_P_OF10_NXM, tid); | |
27527aa0 | 895 | |
75fa58f8 BP |
896 | case OFPUTIL_P_OF11_STD: |
897 | return ofputil_protocol_set_tid(OFPUTIL_P_OF11_STD, tid); | |
898 | ||
85813857 BP |
899 | case OFPUTIL_P_OF12_OXM: |
900 | return ofputil_protocol_set_tid(OFPUTIL_P_OF12_OXM, tid); | |
44d3732d | 901 | |
2e1ae200 JR |
902 | case OFPUTIL_P_OF13_OXM: |
903 | return ofputil_protocol_set_tid(OFPUTIL_P_OF13_OXM, tid); | |
904 | ||
c37c0382 AC |
905 | case OFPUTIL_P_OF14_OXM: |
906 | return ofputil_protocol_set_tid(OFPUTIL_P_OF14_OXM, tid); | |
907 | ||
42dccab5 BP |
908 | case OFPUTIL_P_OF15_OXM: |
909 | return ofputil_protocol_set_tid(OFPUTIL_P_OF15_OXM, tid); | |
910 | ||
7fa91113 | 911 | default: |
428b2edd | 912 | OVS_NOT_REACHED(); |
7fa91113 BP |
913 | } |
914 | } | |
915 | ||
27527aa0 BP |
916 | /* Returns a string form of 'protocol', if a simple form exists (that is, if |
917 | * 'protocol' is either a single protocol or it is a combination of protocols | |
918 | * that have a single abbreviation). Otherwise, returns NULL. */ | |
919 | const char * | |
920 | ofputil_protocol_to_string(enum ofputil_protocol protocol) | |
88ca35ee | 921 | { |
27527aa0 BP |
922 | const struct proto_abbrev *p; |
923 | ||
924 | /* Use a "switch" statement for single-bit names so that we get a compiler | |
925 | * warning if we forget any. */ | |
926 | switch (protocol) { | |
85813857 | 927 | case OFPUTIL_P_OF10_NXM: |
27527aa0 BP |
928 | return "NXM-table_id"; |
929 | ||
85813857 | 930 | case OFPUTIL_P_OF10_NXM_TID: |
27527aa0 BP |
931 | return "NXM+table_id"; |
932 | ||
85813857 | 933 | case OFPUTIL_P_OF10_STD: |
27527aa0 BP |
934 | return "OpenFlow10-table_id"; |
935 | ||
85813857 | 936 | case OFPUTIL_P_OF10_STD_TID: |
27527aa0 | 937 | return "OpenFlow10+table_id"; |
44d3732d | 938 | |
75fa58f8 BP |
939 | case OFPUTIL_P_OF11_STD: |
940 | return "OpenFlow11"; | |
941 | ||
85813857 | 942 | case OFPUTIL_P_OF12_OXM: |
e71bff1b | 943 | return "OXM-OpenFlow12"; |
2e1ae200 JR |
944 | |
945 | case OFPUTIL_P_OF13_OXM: | |
e71bff1b | 946 | return "OXM-OpenFlow13"; |
c37c0382 AC |
947 | |
948 | case OFPUTIL_P_OF14_OXM: | |
949 | return "OXM-OpenFlow14"; | |
42dccab5 BP |
950 | |
951 | case OFPUTIL_P_OF15_OXM: | |
952 | return "OXM-OpenFlow15"; | |
27527aa0 BP |
953 | } |
954 | ||
955 | /* Check abbreviations. */ | |
956 | for (p = proto_abbrevs; p < &proto_abbrevs[N_PROTO_ABBREVS]; p++) { | |
957 | if (protocol == p->protocol) { | |
958 | return p->name; | |
959 | } | |
960 | } | |
961 | ||
962 | return NULL; | |
963 | } | |
964 | ||
965 | /* Returns a string that represents 'protocols'. The return value might be a | |
966 | * comma-separated list if 'protocols' doesn't have a simple name. The return | |
967 | * value is "none" if 'protocols' is 0. | |
968 | * | |
969 | * The caller must free the returned string (with free()). */ | |
970 | char * | |
971 | ofputil_protocols_to_string(enum ofputil_protocol protocols) | |
972 | { | |
973 | struct ds s; | |
974 | ||
cb22974d | 975 | ovs_assert(!(protocols & ~OFPUTIL_P_ANY)); |
27527aa0 BP |
976 | if (protocols == 0) { |
977 | return xstrdup("none"); | |
978 | } | |
979 | ||
980 | ds_init(&s); | |
981 | while (protocols) { | |
982 | const struct proto_abbrev *p; | |
983 | int i; | |
984 | ||
985 | if (s.length) { | |
986 | ds_put_char(&s, ','); | |
987 | } | |
988 | ||
989 | for (p = proto_abbrevs; p < &proto_abbrevs[N_PROTO_ABBREVS]; p++) { | |
990 | if ((protocols & p->protocol) == p->protocol) { | |
991 | ds_put_cstr(&s, p->name); | |
992 | protocols &= ~p->protocol; | |
993 | goto match; | |
994 | } | |
995 | } | |
996 | ||
997 | for (i = 0; i < CHAR_BIT * sizeof(enum ofputil_protocol); i++) { | |
998 | enum ofputil_protocol bit = 1u << i; | |
999 | ||
1000 | if (protocols & bit) { | |
1001 | ds_put_cstr(&s, ofputil_protocol_to_string(bit)); | |
1002 | protocols &= ~bit; | |
1003 | goto match; | |
1004 | } | |
1005 | } | |
428b2edd | 1006 | OVS_NOT_REACHED(); |
27527aa0 BP |
1007 | |
1008 | match: ; | |
1009 | } | |
1010 | return ds_steal_cstr(&s); | |
1011 | } | |
1012 | ||
1013 | static enum ofputil_protocol | |
1014 | ofputil_protocol_from_string__(const char *s, size_t n) | |
1015 | { | |
1016 | const struct proto_abbrev *p; | |
1017 | int i; | |
1018 | ||
1019 | for (i = 0; i < CHAR_BIT * sizeof(enum ofputil_protocol); i++) { | |
1020 | enum ofputil_protocol bit = 1u << i; | |
1021 | const char *name = ofputil_protocol_to_string(bit); | |
1022 | ||
1023 | if (name && n == strlen(name) && !strncasecmp(s, name, n)) { | |
1024 | return bit; | |
1025 | } | |
1026 | } | |
1027 | ||
1028 | for (p = proto_abbrevs; p < &proto_abbrevs[N_PROTO_ABBREVS]; p++) { | |
1029 | if (n == strlen(p->name) && !strncasecmp(s, p->name, n)) { | |
1030 | return p->protocol; | |
1031 | } | |
1032 | } | |
1033 | ||
1034 | return 0; | |
1035 | } | |
1036 | ||
1037 | /* Returns the nonempty set of protocols represented by 's', which can be a | |
1038 | * single protocol name or abbreviation or a comma-separated list of them. | |
1039 | * | |
1040 | * Aborts the program with an error message if 's' is invalid. */ | |
1041 | enum ofputil_protocol | |
1042 | ofputil_protocols_from_string(const char *s) | |
1043 | { | |
1044 | const char *orig_s = s; | |
1045 | enum ofputil_protocol protocols; | |
1046 | ||
1047 | protocols = 0; | |
1048 | while (*s) { | |
1049 | enum ofputil_protocol p; | |
1050 | size_t n; | |
1051 | ||
1052 | n = strcspn(s, ","); | |
1053 | if (n == 0) { | |
1054 | s++; | |
1055 | continue; | |
1056 | } | |
1057 | ||
1058 | p = ofputil_protocol_from_string__(s, n); | |
1059 | if (!p) { | |
1060 | ovs_fatal(0, "%.*s: unknown flow protocol", (int) n, s); | |
1061 | } | |
1062 | protocols |= p; | |
1063 | ||
1064 | s += n; | |
1065 | } | |
1066 | ||
1067 | if (!protocols) { | |
1068 | ovs_fatal(0, "%s: no flow protocol specified", orig_s); | |
1069 | } | |
1070 | return protocols; | |
88ca35ee BP |
1071 | } |
1072 | ||
9d84066c | 1073 | enum ofp_version |
03e1125c SH |
1074 | ofputil_version_from_string(const char *s) |
1075 | { | |
1076 | if (!strcasecmp(s, "OpenFlow10")) { | |
1077 | return OFP10_VERSION; | |
1078 | } | |
1079 | if (!strcasecmp(s, "OpenFlow11")) { | |
1080 | return OFP11_VERSION; | |
1081 | } | |
1082 | if (!strcasecmp(s, "OpenFlow12")) { | |
1083 | return OFP12_VERSION; | |
1084 | } | |
2e1ae200 JR |
1085 | if (!strcasecmp(s, "OpenFlow13")) { |
1086 | return OFP13_VERSION; | |
1087 | } | |
c37c0382 AC |
1088 | if (!strcasecmp(s, "OpenFlow14")) { |
1089 | return OFP14_VERSION; | |
1090 | } | |
42dccab5 BP |
1091 | if (!strcasecmp(s, "OpenFlow15")) { |
1092 | return OFP15_VERSION; | |
1093 | } | |
7beaa082 | 1094 | return 0; |
03e1125c SH |
1095 | } |
1096 | ||
1097 | static bool | |
e091ef84 | 1098 | is_delimiter(unsigned char c) |
03e1125c SH |
1099 | { |
1100 | return isspace(c) || c == ','; | |
1101 | } | |
1102 | ||
1103 | uint32_t | |
1104 | ofputil_versions_from_string(const char *s) | |
1105 | { | |
1106 | size_t i = 0; | |
1107 | uint32_t bitmap = 0; | |
1108 | ||
1109 | while (s[i]) { | |
1110 | size_t j; | |
7beaa082 | 1111 | int version; |
03e1125c SH |
1112 | char *key; |
1113 | ||
1114 | if (is_delimiter(s[i])) { | |
1115 | i++; | |
1116 | continue; | |
1117 | } | |
1118 | j = 0; | |
1119 | while (s[i + j] && !is_delimiter(s[i + j])) { | |
1120 | j++; | |
1121 | } | |
1122 | key = xmemdup0(s + i, j); | |
1123 | version = ofputil_version_from_string(key); | |
7beaa082 SH |
1124 | if (!version) { |
1125 | VLOG_FATAL("Unknown OpenFlow version: \"%s\"", key); | |
1126 | } | |
03e1125c SH |
1127 | free(key); |
1128 | bitmap |= 1u << version; | |
1129 | i += j; | |
1130 | } | |
1131 | ||
1132 | return bitmap; | |
1133 | } | |
1134 | ||
7beaa082 SH |
1135 | uint32_t |
1136 | ofputil_versions_from_strings(char ** const s, size_t count) | |
1137 | { | |
1138 | uint32_t bitmap = 0; | |
1139 | ||
1140 | while (count--) { | |
1141 | int version = ofputil_version_from_string(s[count]); | |
1142 | if (!version) { | |
1143 | VLOG_WARN("Unknown OpenFlow version: \"%s\"", s[count]); | |
1144 | } else { | |
1145 | bitmap |= 1u << version; | |
1146 | } | |
1147 | } | |
1148 | ||
1149 | return bitmap; | |
1150 | } | |
1151 | ||
03e1125c SH |
1152 | const char * |
1153 | ofputil_version_to_string(enum ofp_version ofp_version) | |
1154 | { | |
1155 | switch (ofp_version) { | |
1156 | case OFP10_VERSION: | |
1157 | return "OpenFlow10"; | |
1158 | case OFP11_VERSION: | |
1159 | return "OpenFlow11"; | |
1160 | case OFP12_VERSION: | |
1161 | return "OpenFlow12"; | |
2e1ae200 JR |
1162 | case OFP13_VERSION: |
1163 | return "OpenFlow13"; | |
c37c0382 AC |
1164 | case OFP14_VERSION: |
1165 | return "OpenFlow14"; | |
42dccab5 BP |
1166 | case OFP15_VERSION: |
1167 | return "OpenFlow15"; | |
03e1125c | 1168 | default: |
428b2edd | 1169 | OVS_NOT_REACHED(); |
03e1125c SH |
1170 | } |
1171 | } | |
1172 | ||
54834960 EJ |
1173 | bool |
1174 | ofputil_packet_in_format_is_valid(enum nx_packet_in_format packet_in_format) | |
1175 | { | |
1176 | switch (packet_in_format) { | |
1177 | case NXPIF_OPENFLOW10: | |
1178 | case NXPIF_NXM: | |
1179 | return true; | |
1180 | } | |
1181 | ||
1182 | return false; | |
1183 | } | |
1184 | ||
1185 | const char * | |
1186 | ofputil_packet_in_format_to_string(enum nx_packet_in_format packet_in_format) | |
1187 | { | |
1188 | switch (packet_in_format) { | |
1189 | case NXPIF_OPENFLOW10: | |
1190 | return "openflow10"; | |
1191 | case NXPIF_NXM: | |
1192 | return "nxm"; | |
1193 | default: | |
428b2edd | 1194 | OVS_NOT_REACHED(); |
54834960 EJ |
1195 | } |
1196 | } | |
1197 | ||
1198 | int | |
1199 | ofputil_packet_in_format_from_string(const char *s) | |
1200 | { | |
1201 | return (!strcmp(s, "openflow10") ? NXPIF_OPENFLOW10 | |
1202 | : !strcmp(s, "nxm") ? NXPIF_NXM | |
1203 | : -1); | |
1204 | } | |
1205 | ||
03e1125c SH |
1206 | void |
1207 | ofputil_format_version(struct ds *msg, enum ofp_version version) | |
1208 | { | |
8989046d | 1209 | ds_put_format(msg, "0x%02x", version); |
03e1125c SH |
1210 | } |
1211 | ||
1212 | void | |
1213 | ofputil_format_version_name(struct ds *msg, enum ofp_version version) | |
1214 | { | |
1215 | ds_put_cstr(msg, ofputil_version_to_string(version)); | |
1216 | } | |
1217 | ||
1218 | static void | |
1219 | ofputil_format_version_bitmap__(struct ds *msg, uint32_t bitmap, | |
1220 | void (*format_version)(struct ds *msg, | |
1221 | enum ofp_version)) | |
1222 | { | |
1223 | while (bitmap) { | |
1224 | format_version(msg, raw_ctz(bitmap)); | |
1225 | bitmap = zero_rightmost_1bit(bitmap); | |
1226 | if (bitmap) { | |
1227 | ds_put_cstr(msg, ", "); | |
1228 | } | |
1229 | } | |
1230 | } | |
1231 | ||
1232 | void | |
1233 | ofputil_format_version_bitmap(struct ds *msg, uint32_t bitmap) | |
1234 | { | |
1235 | ofputil_format_version_bitmap__(msg, bitmap, ofputil_format_version); | |
1236 | } | |
1237 | ||
1238 | void | |
1239 | ofputil_format_version_bitmap_names(struct ds *msg, uint32_t bitmap) | |
1240 | { | |
1241 | ofputil_format_version_bitmap__(msg, bitmap, ofputil_format_version_name); | |
1242 | } | |
1243 | ||
de6c85b0 SH |
1244 | static bool |
1245 | ofputil_decode_hello_bitmap(const struct ofp_hello_elem_header *oheh, | |
0935de41 | 1246 | uint32_t *allowed_versionsp) |
de6c85b0 SH |
1247 | { |
1248 | uint16_t bitmap_len = ntohs(oheh->length) - sizeof *oheh; | |
db5a1019 | 1249 | const ovs_be32 *bitmap = ALIGNED_CAST(const ovs_be32 *, oheh + 1); |
0935de41 | 1250 | uint32_t allowed_versions; |
de6c85b0 SH |
1251 | |
1252 | if (!bitmap_len || bitmap_len % sizeof *bitmap) { | |
1253 | return false; | |
1254 | } | |
1255 | ||
1256 | /* Only use the first 32-bit element of the bitmap as that is all the | |
1257 | * current implementation supports. Subsequent elements are ignored which | |
7e9383cc | 1258 | * should have no effect on session negotiation until Open vSwitch supports |
de6c85b0 SH |
1259 | * wire-protocol versions greater than 31. |
1260 | */ | |
0935de41 | 1261 | allowed_versions = ntohl(bitmap[0]); |
de6c85b0 | 1262 | |
0935de41 | 1263 | if (allowed_versions & 1) { |
de6c85b0 SH |
1264 | /* There's no OpenFlow version 0. */ |
1265 | VLOG_WARN_RL(&bad_ofmsg_rl, "peer claims to support invalid OpenFlow " | |
1266 | "version 0x00"); | |
0935de41 | 1267 | allowed_versions &= ~1u; |
de6c85b0 SH |
1268 | } |
1269 | ||
0935de41 | 1270 | if (!allowed_versions) { |
de6c85b0 SH |
1271 | VLOG_WARN_RL(&bad_ofmsg_rl, "peer does not support any OpenFlow " |
1272 | "version (between 0x01 and 0x1f)"); | |
1273 | return false; | |
1274 | } | |
1275 | ||
0935de41 | 1276 | *allowed_versionsp = allowed_versions; |
de6c85b0 SH |
1277 | return true; |
1278 | } | |
1279 | ||
1280 | static uint32_t | |
1281 | version_bitmap_from_version(uint8_t ofp_version) | |
1282 | { | |
1283 | return ((ofp_version < 32 ? 1u << ofp_version : 0) - 1) << 1; | |
1284 | } | |
1285 | ||
1286 | /* Decodes OpenFlow OFPT_HELLO message 'oh', storing into '*allowed_versions' | |
1287 | * the set of OpenFlow versions for which 'oh' announces support. | |
1288 | * | |
1289 | * Because of how OpenFlow defines OFPT_HELLO messages, this function is always | |
1290 | * successful, and thus '*allowed_versions' is always initialized. However, it | |
1291 | * returns false if 'oh' contains some data that could not be fully understood, | |
1292 | * true if 'oh' was completely parsed. */ | |
1293 | bool | |
1294 | ofputil_decode_hello(const struct ofp_header *oh, uint32_t *allowed_versions) | |
1295 | { | |
1296 | struct ofpbuf msg; | |
1297 | bool ok = true; | |
1298 | ||
1299 | ofpbuf_use_const(&msg, oh, ntohs(oh->length)); | |
1300 | ofpbuf_pull(&msg, sizeof *oh); | |
1301 | ||
1302 | *allowed_versions = version_bitmap_from_version(oh->version); | |
6fd6ed71 | 1303 | while (msg.size) { |
de6c85b0 SH |
1304 | const struct ofp_hello_elem_header *oheh; |
1305 | unsigned int len; | |
1306 | ||
6fd6ed71 | 1307 | if (msg.size < sizeof *oheh) { |
de6c85b0 SH |
1308 | return false; |
1309 | } | |
1310 | ||
6fd6ed71 | 1311 | oheh = msg.data; |
de6c85b0 SH |
1312 | len = ntohs(oheh->length); |
1313 | if (len < sizeof *oheh || !ofpbuf_try_pull(&msg, ROUND_UP(len, 8))) { | |
1314 | return false; | |
1315 | } | |
1316 | ||
1317 | if (oheh->type != htons(OFPHET_VERSIONBITMAP) | |
1318 | || !ofputil_decode_hello_bitmap(oheh, allowed_versions)) { | |
1319 | ok = false; | |
1320 | } | |
1321 | } | |
1322 | ||
1323 | return ok; | |
1324 | } | |
1325 | ||
1326 | /* Returns true if 'allowed_versions' needs to be accompanied by a version | |
1327 | * bitmap to be correctly expressed in an OFPT_HELLO message. */ | |
5ddea998 | 1328 | static bool |
de6c85b0 SH |
1329 | should_send_version_bitmap(uint32_t allowed_versions) |
1330 | { | |
1331 | return !is_pow2((allowed_versions >> 1) + 1); | |
1332 | } | |
1333 | ||
1334 | /* Create an OFPT_HELLO message that expresses support for the OpenFlow | |
1335 | * versions in the 'allowed_versions' bitmaps and returns the message. */ | |
1336 | struct ofpbuf * | |
1337 | ofputil_encode_hello(uint32_t allowed_versions) | |
1338 | { | |
1339 | enum ofp_version ofp_version; | |
1340 | struct ofpbuf *msg; | |
1341 | ||
1342 | ofp_version = leftmost_1bit_idx(allowed_versions); | |
1343 | msg = ofpraw_alloc(OFPRAW_OFPT_HELLO, ofp_version, 0); | |
1344 | ||
1345 | if (should_send_version_bitmap(allowed_versions)) { | |
1346 | struct ofp_hello_elem_header *oheh; | |
1347 | uint16_t map_len; | |
1348 | ||
74c4b9c1 | 1349 | map_len = sizeof allowed_versions; |
de6c85b0 SH |
1350 | oheh = ofpbuf_put_zeros(msg, ROUND_UP(map_len + sizeof *oheh, 8)); |
1351 | oheh->type = htons(OFPHET_VERSIONBITMAP); | |
1352 | oheh->length = htons(map_len + sizeof *oheh); | |
db5a1019 | 1353 | *ALIGNED_CAST(ovs_be32 *, oheh + 1) = htonl(allowed_versions); |
1804d25a BP |
1354 | |
1355 | ofpmsg_update_length(msg); | |
de6c85b0 SH |
1356 | } |
1357 | ||
1358 | return msg; | |
1359 | } | |
1360 | ||
27527aa0 BP |
1361 | /* Returns an OpenFlow message that, sent on an OpenFlow connection whose |
1362 | * protocol is 'current', at least partly transitions the protocol to 'want'. | |
1363 | * Stores in '*next' the protocol that will be in effect on the OpenFlow | |
1364 | * connection if the switch processes the returned message correctly. (If | |
1365 | * '*next != want' then the caller will have to iterate.) | |
1366 | * | |
e43928f2 BP |
1367 | * If 'current == want', or if it is not possible to transition from 'current' |
1368 | * to 'want' (because, for example, 'current' and 'want' use different OpenFlow | |
1369 | * protocol versions), returns NULL and stores 'current' in '*next'. */ | |
27527aa0 BP |
1370 | struct ofpbuf * |
1371 | ofputil_encode_set_protocol(enum ofputil_protocol current, | |
1372 | enum ofputil_protocol want, | |
1373 | enum ofputil_protocol *next) | |
1374 | { | |
e43928f2 | 1375 | enum ofp_version cur_version, want_version; |
27527aa0 BP |
1376 | enum ofputil_protocol cur_base, want_base; |
1377 | bool cur_tid, want_tid; | |
1378 | ||
e43928f2 BP |
1379 | cur_version = ofputil_protocol_to_ofp_version(current); |
1380 | want_version = ofputil_protocol_to_ofp_version(want); | |
1381 | if (cur_version != want_version) { | |
1382 | *next = current; | |
1383 | return NULL; | |
1384 | } | |
1385 | ||
27527aa0 BP |
1386 | cur_base = ofputil_protocol_to_base(current); |
1387 | want_base = ofputil_protocol_to_base(want); | |
1388 | if (cur_base != want_base) { | |
1389 | *next = ofputil_protocol_set_base(current, want_base); | |
1390 | ||
1391 | switch (want_base) { | |
85813857 | 1392 | case OFPUTIL_P_OF10_NXM: |
27527aa0 BP |
1393 | return ofputil_encode_nx_set_flow_format(NXFF_NXM); |
1394 | ||
85813857 | 1395 | case OFPUTIL_P_OF10_STD: |
27527aa0 BP |
1396 | return ofputil_encode_nx_set_flow_format(NXFF_OPENFLOW10); |
1397 | ||
75fa58f8 | 1398 | case OFPUTIL_P_OF11_STD: |
85813857 | 1399 | case OFPUTIL_P_OF12_OXM: |
2e1ae200 | 1400 | case OFPUTIL_P_OF13_OXM: |
c37c0382 | 1401 | case OFPUTIL_P_OF14_OXM: |
42dccab5 | 1402 | case OFPUTIL_P_OF15_OXM: |
75fa58f8 | 1403 | /* There is only one variant of each OpenFlow 1.1+ protocol, and we |
2e1ae200 | 1404 | * verified above that we're not trying to change versions. */ |
428b2edd | 1405 | OVS_NOT_REACHED(); |
44d3732d | 1406 | |
85813857 BP |
1407 | case OFPUTIL_P_OF10_STD_TID: |
1408 | case OFPUTIL_P_OF10_NXM_TID: | |
428b2edd | 1409 | OVS_NOT_REACHED(); |
27527aa0 BP |
1410 | } |
1411 | } | |
1412 | ||
1413 | cur_tid = (current & OFPUTIL_P_TID) != 0; | |
1414 | want_tid = (want & OFPUTIL_P_TID) != 0; | |
1415 | if (cur_tid != want_tid) { | |
1416 | *next = ofputil_protocol_set_tid(current, want_tid); | |
1417 | return ofputil_make_flow_mod_table_id(want_tid); | |
1418 | } | |
1419 | ||
cb22974d | 1420 | ovs_assert(current == want); |
27527aa0 BP |
1421 | |
1422 | *next = current; | |
1423 | return NULL; | |
88ca35ee BP |
1424 | } |
1425 | ||
27527aa0 BP |
1426 | /* Returns an NXT_SET_FLOW_FORMAT message that can be used to set the flow |
1427 | * format to 'nxff'. */ | |
88ca35ee | 1428 | struct ofpbuf * |
27527aa0 | 1429 | ofputil_encode_nx_set_flow_format(enum nx_flow_format nxff) |
88ca35ee | 1430 | { |
73dbf4ab | 1431 | struct nx_set_flow_format *sff; |
88ca35ee BP |
1432 | struct ofpbuf *msg; |
1433 | ||
cb22974d | 1434 | ovs_assert(ofputil_nx_flow_format_is_valid(nxff)); |
27527aa0 | 1435 | |
982697a4 BP |
1436 | msg = ofpraw_alloc(OFPRAW_NXT_SET_FLOW_FORMAT, OFP10_VERSION, 0); |
1437 | sff = ofpbuf_put_zeros(msg, sizeof *sff); | |
27527aa0 | 1438 | sff->format = htonl(nxff); |
88ca35ee BP |
1439 | |
1440 | return msg; | |
1441 | } | |
1442 | ||
27527aa0 BP |
1443 | /* Returns the base protocol if 'flow_format' is a valid NXFF_* value, false |
1444 | * otherwise. */ | |
1445 | enum ofputil_protocol | |
1446 | ofputil_nx_flow_format_to_protocol(enum nx_flow_format flow_format) | |
1447 | { | |
1448 | switch (flow_format) { | |
1449 | case NXFF_OPENFLOW10: | |
85813857 | 1450 | return OFPUTIL_P_OF10_STD; |
27527aa0 BP |
1451 | |
1452 | case NXFF_NXM: | |
85813857 | 1453 | return OFPUTIL_P_OF10_NXM; |
27527aa0 BP |
1454 | |
1455 | default: | |
1456 | return 0; | |
1457 | } | |
1458 | } | |
1459 | ||
1460 | /* Returns true if 'flow_format' is a valid NXFF_* value, false otherwise. */ | |
1461 | bool | |
1462 | ofputil_nx_flow_format_is_valid(enum nx_flow_format flow_format) | |
1463 | { | |
1464 | return ofputil_nx_flow_format_to_protocol(flow_format) != 0; | |
1465 | } | |
1466 | ||
1467 | /* Returns a string version of 'flow_format', which must be a valid NXFF_* | |
1468 | * value. */ | |
1469 | const char * | |
1470 | ofputil_nx_flow_format_to_string(enum nx_flow_format flow_format) | |
1471 | { | |
1472 | switch (flow_format) { | |
1473 | case NXFF_OPENFLOW10: | |
1474 | return "openflow10"; | |
1475 | case NXFF_NXM: | |
1476 | return "nxm"; | |
1477 | default: | |
428b2edd | 1478 | OVS_NOT_REACHED(); |
27527aa0 BP |
1479 | } |
1480 | } | |
1481 | ||
54834960 | 1482 | struct ofpbuf * |
3f4a1939 SH |
1483 | ofputil_make_set_packet_in_format(enum ofp_version ofp_version, |
1484 | enum nx_packet_in_format packet_in_format) | |
54834960 | 1485 | { |
73dbf4ab | 1486 | struct nx_set_packet_in_format *spif; |
54834960 EJ |
1487 | struct ofpbuf *msg; |
1488 | ||
3f4a1939 | 1489 | msg = ofpraw_alloc(OFPRAW_NXT_SET_PACKET_IN_FORMAT, ofp_version, 0); |
982697a4 | 1490 | spif = ofpbuf_put_zeros(msg, sizeof *spif); |
54834960 EJ |
1491 | spif->format = htonl(packet_in_format); |
1492 | ||
1493 | return msg; | |
1494 | } | |
1495 | ||
6c1491fb BP |
1496 | /* Returns an OpenFlow message that can be used to turn the flow_mod_table_id |
1497 | * extension on or off (according to 'flow_mod_table_id'). */ | |
1498 | struct ofpbuf * | |
1499 | ofputil_make_flow_mod_table_id(bool flow_mod_table_id) | |
1500 | { | |
73dbf4ab | 1501 | struct nx_flow_mod_table_id *nfmti; |
6c1491fb BP |
1502 | struct ofpbuf *msg; |
1503 | ||
982697a4 BP |
1504 | msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MOD_TABLE_ID, OFP10_VERSION, 0); |
1505 | nfmti = ofpbuf_put_zeros(msg, sizeof *nfmti); | |
6c1491fb BP |
1506 | nfmti->set = flow_mod_table_id; |
1507 | return msg; | |
1508 | } | |
1509 | ||
0fb88c18 BP |
1510 | struct ofputil_flow_mod_flag { |
1511 | uint16_t raw_flag; | |
1512 | enum ofp_version min_version, max_version; | |
1513 | enum ofputil_flow_mod_flags flag; | |
1514 | }; | |
1515 | ||
1516 | static const struct ofputil_flow_mod_flag ofputil_flow_mod_flags[] = { | |
1517 | { OFPFF_SEND_FLOW_REM, OFP10_VERSION, 0, OFPUTIL_FF_SEND_FLOW_REM }, | |
1518 | { OFPFF_CHECK_OVERLAP, OFP10_VERSION, 0, OFPUTIL_FF_CHECK_OVERLAP }, | |
1519 | { OFPFF10_EMERG, OFP10_VERSION, OFP10_VERSION, | |
1520 | OFPUTIL_FF_EMERG }, | |
1521 | { OFPFF12_RESET_COUNTS, OFP12_VERSION, 0, OFPUTIL_FF_RESET_COUNTS }, | |
1522 | { OFPFF13_NO_PKT_COUNTS, OFP13_VERSION, 0, OFPUTIL_FF_NO_PKT_COUNTS }, | |
1523 | { OFPFF13_NO_BYT_COUNTS, OFP13_VERSION, 0, OFPUTIL_FF_NO_BYT_COUNTS }, | |
1524 | { 0, 0, 0, 0 }, | |
1525 | }; | |
1526 | ||
1527 | static enum ofperr | |
1528 | ofputil_decode_flow_mod_flags(ovs_be16 raw_flags_, | |
1529 | enum ofp_flow_mod_command command, | |
1530 | enum ofp_version version, | |
1531 | enum ofputil_flow_mod_flags *flagsp) | |
1532 | { | |
1533 | uint16_t raw_flags = ntohs(raw_flags_); | |
1534 | const struct ofputil_flow_mod_flag *f; | |
1535 | ||
1536 | *flagsp = 0; | |
1537 | for (f = ofputil_flow_mod_flags; f->raw_flag; f++) { | |
1538 | if (raw_flags & f->raw_flag | |
1539 | && version >= f->min_version | |
1540 | && (!f->max_version || version <= f->max_version)) { | |
1541 | raw_flags &= ~f->raw_flag; | |
1542 | *flagsp |= f->flag; | |
1543 | } | |
1544 | } | |
1545 | ||
1546 | /* In OF1.0 and OF1.1, "add" always resets counters, and other commands | |
1547 | * never do. | |
1548 | * | |
1549 | * In OF1.2 and later, OFPFF12_RESET_COUNTS controls whether each command | |
1550 | * resets counters. */ | |
1551 | if ((version == OFP10_VERSION || version == OFP11_VERSION) | |
1552 | && command == OFPFC_ADD) { | |
1553 | *flagsp |= OFPUTIL_FF_RESET_COUNTS; | |
1554 | } | |
1555 | ||
1556 | return raw_flags ? OFPERR_OFPFMFC_BAD_FLAGS : 0; | |
1557 | } | |
1558 | ||
1559 | static ovs_be16 | |
1560 | ofputil_encode_flow_mod_flags(enum ofputil_flow_mod_flags flags, | |
1561 | enum ofp_version version) | |
1562 | { | |
1563 | const struct ofputil_flow_mod_flag *f; | |
1564 | uint16_t raw_flags; | |
1565 | ||
1566 | raw_flags = 0; | |
1567 | for (f = ofputil_flow_mod_flags; f->raw_flag; f++) { | |
1568 | if (f->flag & flags | |
1569 | && version >= f->min_version | |
1570 | && (!f->max_version || version <= f->max_version)) { | |
1571 | raw_flags |= f->raw_flag; | |
1572 | } | |
1573 | } | |
1574 | ||
1575 | return htons(raw_flags); | |
1576 | } | |
1577 | ||
7fa91113 BP |
1578 | /* Converts an OFPT_FLOW_MOD or NXT_FLOW_MOD message 'oh' into an abstract |
1579 | * flow_mod in 'fm'. Returns 0 if successful, otherwise an OpenFlow error | |
1580 | * code. | |
1581 | * | |
f25d0cf3 BP |
1582 | * Uses 'ofpacts' to store the abstract OFPACT_* version of 'oh''s actions. |
1583 | * The caller must initialize 'ofpacts' and retains ownership of it. | |
1584 | * 'fm->ofpacts' will point into the 'ofpacts' buffer. | |
1585 | * | |
1586 | * Does not validate the flow_mod actions. The caller should do that, with | |
1587 | * ofpacts_check(). */ | |
90bf1e07 | 1588 | enum ofperr |
a9a2da38 | 1589 | ofputil_decode_flow_mod(struct ofputil_flow_mod *fm, |
27527aa0 | 1590 | const struct ofp_header *oh, |
f25d0cf3 | 1591 | enum ofputil_protocol protocol, |
7e9f8266 BP |
1592 | struct ofpbuf *ofpacts, |
1593 | ofp_port_t max_port, uint8_t max_table) | |
2e4f5fcf | 1594 | { |
0fb88c18 BP |
1595 | ovs_be16 raw_flags; |
1596 | enum ofperr error; | |
2e4f5fcf | 1597 | struct ofpbuf b; |
982697a4 | 1598 | enum ofpraw raw; |
2e4f5fcf | 1599 | |
cc40d06b SH |
1600 | /* Ignored for non-delete actions */ |
1601 | fm->delete_reason = OFPRR_DELETE; | |
1602 | ||
2013493b | 1603 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
982697a4 | 1604 | raw = ofpraw_pull_assert(&b); |
aa319503 | 1605 | if (raw == OFPRAW_OFPT11_FLOW_MOD) { |
1828ae51 | 1606 | /* Standard OpenFlow 1.1+ flow_mod. */ |
aa319503 | 1607 | const struct ofp11_flow_mod *ofm; |
2e4f5fcf | 1608 | |
bbc32a88 | 1609 | ofm = ofpbuf_pull(&b, sizeof *ofm); |
2e4f5fcf | 1610 | |
81a76618 | 1611 | error = ofputil_pull_ofp11_match(&b, &fm->match, NULL); |
aa319503 BP |
1612 | if (error) { |
1613 | return error; | |
1c0b7503 BP |
1614 | } |
1615 | ||
2e4f5fcf | 1616 | /* Translate the message. */ |
81a76618 | 1617 | fm->priority = ntohs(ofm->priority); |
75fa58f8 BP |
1618 | if (ofm->command == OFPFC_ADD |
1619 | || (oh->version == OFP11_VERSION | |
1620 | && (ofm->command == OFPFC_MODIFY || | |
1621 | ofm->command == OFPFC_MODIFY_STRICT) | |
1622 | && ofm->cookie_mask == htonll(0))) { | |
1623 | /* In OpenFlow 1.1 only, a "modify" or "modify-strict" that does | |
1624 | * not match on the cookie is treated as an "add" if there is no | |
1625 | * match. */ | |
aa319503 BP |
1626 | fm->cookie = htonll(0); |
1627 | fm->cookie_mask = htonll(0); | |
1628 | fm->new_cookie = ofm->cookie; | |
1629 | } else { | |
aa319503 BP |
1630 | fm->cookie = ofm->cookie; |
1631 | fm->cookie_mask = ofm->cookie_mask; | |
b8266395 | 1632 | fm->new_cookie = OVS_BE64_MAX; |
aa319503 | 1633 | } |
23342857 | 1634 | fm->modify_cookie = false; |
aa319503 | 1635 | fm->command = ofm->command; |
0e197060 BP |
1636 | |
1637 | /* Get table ID. | |
1638 | * | |
083761ad SH |
1639 | * OF1.1 entirely forbids table_id == OFPTT_ALL. |
1640 | * OF1.2+ allows table_id == OFPTT_ALL only for deletes. */ | |
aa319503 | 1641 | fm->table_id = ofm->table_id; |
083761ad | 1642 | if (fm->table_id == OFPTT_ALL |
0e197060 BP |
1643 | && (oh->version == OFP11_VERSION |
1644 | || (ofm->command != OFPFC_DELETE && | |
1645 | ofm->command != OFPFC_DELETE_STRICT))) { | |
1646 | return OFPERR_OFPFMFC_BAD_TABLE_ID; | |
1647 | } | |
1648 | ||
2e4f5fcf BP |
1649 | fm->idle_timeout = ntohs(ofm->idle_timeout); |
1650 | fm->hard_timeout = ntohs(ofm->hard_timeout); | |
ca26eb44 RB |
1651 | if (oh->version >= OFP14_VERSION && ofm->command == OFPFC_ADD) { |
1652 | fm->importance = ntohs(ofm->importance); | |
1653 | } else { | |
1654 | fm->importance = 0; | |
1655 | } | |
2e4f5fcf | 1656 | fm->buffer_id = ntohl(ofm->buffer_id); |
aa319503 | 1657 | error = ofputil_port_from_ofp11(ofm->out_port, &fm->out_port); |
2e4f5fcf BP |
1658 | if (error) { |
1659 | return error; | |
1660 | } | |
7395c052 | 1661 | |
1fe4c0a0 BP |
1662 | fm->out_group = (ofm->command == OFPFC_DELETE || |
1663 | ofm->command == OFPFC_DELETE_STRICT | |
1664 | ? ntohl(ofm->out_group) | |
30ef36c6 | 1665 | : OFPG_ANY); |
0fb88c18 | 1666 | raw_flags = ofm->flags; |
aa319503 | 1667 | } else { |
0fb88c18 BP |
1668 | uint16_t command; |
1669 | ||
aa319503 BP |
1670 | if (raw == OFPRAW_OFPT10_FLOW_MOD) { |
1671 | /* Standard OpenFlow 1.0 flow_mod. */ | |
1672 | const struct ofp10_flow_mod *ofm; | |
aa319503 BP |
1673 | |
1674 | /* Get the ofp10_flow_mod. */ | |
1675 | ofm = ofpbuf_pull(&b, sizeof *ofm); | |
1676 | ||
aa319503 | 1677 | /* Translate the rule. */ |
81a76618 BP |
1678 | ofputil_match_from_ofp10_match(&ofm->match, &fm->match); |
1679 | ofputil_normalize_match(&fm->match); | |
aa319503 | 1680 | |
81a76618 BP |
1681 | /* OpenFlow 1.0 says that exact-match rules have to have the |
1682 | * highest possible priority. */ | |
1683 | fm->priority = (ofm->match.wildcards & htonl(OFPFW10_ALL) | |
1684 | ? ntohs(ofm->priority) | |
1685 | : UINT16_MAX); | |
1686 | ||
aa319503 BP |
1687 | /* Translate the message. */ |
1688 | command = ntohs(ofm->command); | |
1689 | fm->cookie = htonll(0); | |
1690 | fm->cookie_mask = htonll(0); | |
1691 | fm->new_cookie = ofm->cookie; | |
1692 | fm->idle_timeout = ntohs(ofm->idle_timeout); | |
1693 | fm->hard_timeout = ntohs(ofm->hard_timeout); | |
ca26eb44 | 1694 | fm->importance = 0; |
aa319503 | 1695 | fm->buffer_id = ntohl(ofm->buffer_id); |
4e022ec0 | 1696 | fm->out_port = u16_to_ofp(ntohs(ofm->out_port)); |
30ef36c6 | 1697 | fm->out_group = OFPG_ANY; |
0fb88c18 | 1698 | raw_flags = ofm->flags; |
aa319503 BP |
1699 | } else if (raw == OFPRAW_NXT_FLOW_MOD) { |
1700 | /* Nicira extended flow_mod. */ | |
1701 | const struct nx_flow_mod *nfm; | |
aa319503 BP |
1702 | |
1703 | /* Dissect the message. */ | |
1704 | nfm = ofpbuf_pull(&b, sizeof *nfm); | |
81a76618 BP |
1705 | error = nx_pull_match(&b, ntohs(nfm->match_len), |
1706 | &fm->match, &fm->cookie, &fm->cookie_mask); | |
aa319503 BP |
1707 | if (error) { |
1708 | return error; | |
1709 | } | |
aa319503 BP |
1710 | |
1711 | /* Translate the message. */ | |
1712 | command = ntohs(nfm->command); | |
1713 | if ((command & 0xff) == OFPFC_ADD && fm->cookie_mask) { | |
1714 | /* Flow additions may only set a new cookie, not match an | |
1715 | * existing cookie. */ | |
1716 | return OFPERR_NXBRC_NXM_INVALID; | |
1717 | } | |
81a76618 | 1718 | fm->priority = ntohs(nfm->priority); |
aa319503 BP |
1719 | fm->new_cookie = nfm->cookie; |
1720 | fm->idle_timeout = ntohs(nfm->idle_timeout); | |
1721 | fm->hard_timeout = ntohs(nfm->hard_timeout); | |
ca26eb44 | 1722 | fm->importance = 0; |
aa319503 | 1723 | fm->buffer_id = ntohl(nfm->buffer_id); |
4e022ec0 | 1724 | fm->out_port = u16_to_ofp(ntohs(nfm->out_port)); |
30ef36c6 | 1725 | fm->out_group = OFPG_ANY; |
0fb88c18 | 1726 | raw_flags = nfm->flags; |
aa319503 | 1727 | } else { |
428b2edd | 1728 | OVS_NOT_REACHED(); |
aa319503 BP |
1729 | } |
1730 | ||
b8266395 | 1731 | fm->modify_cookie = fm->new_cookie != OVS_BE64_MAX; |
aa319503 BP |
1732 | if (protocol & OFPUTIL_P_TID) { |
1733 | fm->command = command & 0xff; | |
1734 | fm->table_id = command >> 8; | |
1735 | } else { | |
1f42be1c JR |
1736 | if (command > 0xff) { |
1737 | VLOG_WARN_RL(&bad_ofmsg_rl, "flow_mod has explicit table_id " | |
1738 | "but flow_mod_table_id extension is not enabled"); | |
1739 | } | |
aa319503 BP |
1740 | fm->command = command; |
1741 | fm->table_id = 0xff; | |
e729e793 | 1742 | } |
2e4f5fcf BP |
1743 | } |
1744 | ||
1f42be1c JR |
1745 | if (fm->command > OFPFC_DELETE_STRICT) { |
1746 | return OFPERR_OFPFMFC_BAD_COMMAND; | |
1747 | } | |
1748 | ||
6fd6ed71 | 1749 | error = ofpacts_pull_openflow_instructions(&b, b.size, |
8f2cded4 BP |
1750 | oh->version, ofpacts); |
1751 | if (error) { | |
1752 | return error; | |
1753 | } | |
6fd6ed71 PS |
1754 | fm->ofpacts = ofpacts->data; |
1755 | fm->ofpacts_len = ofpacts->size; | |
6c1491fb | 1756 | |
0fb88c18 BP |
1757 | error = ofputil_decode_flow_mod_flags(raw_flags, fm->command, |
1758 | oh->version, &fm->flags); | |
1759 | if (error) { | |
1760 | return error; | |
1761 | } | |
1762 | ||
1763 | if (fm->flags & OFPUTIL_FF_EMERG) { | |
1764 | /* We do not support the OpenFlow 1.0 emergency flow cache, which | |
1765 | * is not required in OpenFlow 1.0.1 and removed from OpenFlow 1.1. | |
1766 | * | |
1767 | * OpenFlow 1.0 specifies the error code to use when idle_timeout | |
1768 | * or hard_timeout is nonzero. Otherwise, there is no good error | |
1769 | * code, so just state that the flow table is full. */ | |
1770 | return (fm->hard_timeout || fm->idle_timeout | |
1771 | ? OFPERR_OFPFMFC_BAD_EMERG_TIMEOUT | |
1772 | : OFPERR_OFPFMFC_TABLE_FULL); | |
1773 | } | |
1774 | ||
ba2fe8e9 BP |
1775 | return ofpacts_check_consistency(fm->ofpacts, fm->ofpacts_len, |
1776 | &fm->match.flow, max_port, | |
1777 | fm->table_id, max_table, protocol); | |
2e4f5fcf BP |
1778 | } |
1779 | ||
638a19b0 JR |
1780 | static enum ofperr |
1781 | ofputil_pull_bands(struct ofpbuf *msg, size_t len, uint16_t *n_bands, | |
1782 | struct ofpbuf *bands) | |
1783 | { | |
1784 | const struct ofp13_meter_band_header *ombh; | |
1785 | struct ofputil_meter_band *mb; | |
1786 | uint16_t n = 0; | |
1787 | ||
1788 | ombh = ofpbuf_try_pull(msg, len); | |
1789 | if (!ombh) { | |
1790 | return OFPERR_OFPBRC_BAD_LEN; | |
1791 | } | |
1792 | ||
1793 | while (len >= sizeof (struct ofp13_meter_band_drop)) { | |
1794 | size_t ombh_len = ntohs(ombh->len); | |
0445637d | 1795 | /* All supported band types have the same length. */ |
638a19b0 JR |
1796 | if (ombh_len != sizeof (struct ofp13_meter_band_drop)) { |
1797 | return OFPERR_OFPBRC_BAD_LEN; | |
1798 | } | |
1799 | mb = ofpbuf_put_uninit(bands, sizeof *mb); | |
1800 | mb->type = ntohs(ombh->type); | |
f99d6aa0 BP |
1801 | if (mb->type != OFPMBT13_DROP && mb->type != OFPMBT13_DSCP_REMARK) { |
1802 | return OFPERR_OFPMMFC_BAD_BAND; | |
1803 | } | |
638a19b0 JR |
1804 | mb->rate = ntohl(ombh->rate); |
1805 | mb->burst_size = ntohl(ombh->burst_size); | |
1806 | mb->prec_level = (mb->type == OFPMBT13_DSCP_REMARK) ? | |
1807 | ((struct ofp13_meter_band_dscp_remark *)ombh)->prec_level : 0; | |
1808 | n++; | |
1809 | len -= ombh_len; | |
db5a1019 AW |
1810 | ombh = ALIGNED_CAST(struct ofp13_meter_band_header *, |
1811 | (char *) ombh + ombh_len); | |
638a19b0 JR |
1812 | } |
1813 | if (len) { | |
1814 | return OFPERR_OFPBRC_BAD_LEN; | |
1815 | } | |
1816 | *n_bands = n; | |
1817 | return 0; | |
1818 | } | |
1819 | ||
1820 | enum ofperr | |
1821 | ofputil_decode_meter_mod(const struct ofp_header *oh, | |
1822 | struct ofputil_meter_mod *mm, | |
1823 | struct ofpbuf *bands) | |
1824 | { | |
1825 | const struct ofp13_meter_mod *omm; | |
1826 | struct ofpbuf b; | |
1827 | ||
1828 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
1829 | ofpraw_pull_assert(&b); | |
1830 | omm = ofpbuf_pull(&b, sizeof *omm); | |
1831 | ||
1832 | /* Translate the message. */ | |
1833 | mm->command = ntohs(omm->command); | |
142cdb01 BP |
1834 | if (mm->command != OFPMC13_ADD && |
1835 | mm->command != OFPMC13_MODIFY && | |
1836 | mm->command != OFPMC13_DELETE) { | |
1837 | return OFPERR_OFPMMFC_BAD_COMMAND; | |
1838 | } | |
638a19b0 JR |
1839 | mm->meter.meter_id = ntohl(omm->meter_id); |
1840 | ||
1841 | if (mm->command == OFPMC13_DELETE) { | |
1842 | mm->meter.flags = 0; | |
1843 | mm->meter.n_bands = 0; | |
1844 | mm->meter.bands = NULL; | |
1845 | } else { | |
1846 | enum ofperr error; | |
1847 | ||
1848 | mm->meter.flags = ntohs(omm->flags); | |
13b1febe BP |
1849 | if (mm->meter.flags & OFPMF13_KBPS && |
1850 | mm->meter.flags & OFPMF13_PKTPS) { | |
1851 | return OFPERR_OFPMMFC_BAD_FLAGS; | |
1852 | } | |
6fd6ed71 | 1853 | mm->meter.bands = bands->data; |
638a19b0 | 1854 | |
6fd6ed71 | 1855 | error = ofputil_pull_bands(&b, b.size, &mm->meter.n_bands, bands); |
638a19b0 JR |
1856 | if (error) { |
1857 | return error; | |
1858 | } | |
1859 | } | |
1860 | return 0; | |
1861 | } | |
1862 | ||
1863 | void | |
1864 | ofputil_decode_meter_request(const struct ofp_header *oh, uint32_t *meter_id) | |
1865 | { | |
1866 | const struct ofp13_meter_multipart_request *omr = ofpmsg_body(oh); | |
1867 | *meter_id = ntohl(omr->meter_id); | |
1868 | } | |
1869 | ||
1870 | struct ofpbuf * | |
1871 | ofputil_encode_meter_request(enum ofp_version ofp_version, | |
1872 | enum ofputil_meter_request_type type, | |
1873 | uint32_t meter_id) | |
1874 | { | |
1875 | struct ofpbuf *msg; | |
1876 | ||
1877 | enum ofpraw raw; | |
1878 | ||
1879 | switch (type) { | |
1880 | case OFPUTIL_METER_CONFIG: | |
1881 | raw = OFPRAW_OFPST13_METER_CONFIG_REQUEST; | |
1882 | break; | |
1883 | case OFPUTIL_METER_STATS: | |
1884 | raw = OFPRAW_OFPST13_METER_REQUEST; | |
1885 | break; | |
1886 | default: | |
1887 | case OFPUTIL_METER_FEATURES: | |
1888 | raw = OFPRAW_OFPST13_METER_FEATURES_REQUEST; | |
1889 | break; | |
1890 | } | |
1891 | ||
1892 | msg = ofpraw_alloc(raw, ofp_version, 0); | |
1893 | ||
1894 | if (type != OFPUTIL_METER_FEATURES) { | |
1895 | struct ofp13_meter_multipart_request *omr; | |
1896 | omr = ofpbuf_put_zeros(msg, sizeof *omr); | |
1897 | omr->meter_id = htonl(meter_id); | |
1898 | } | |
1899 | return msg; | |
1900 | } | |
1901 | ||
1902 | static void | |
1903 | ofputil_put_bands(uint16_t n_bands, const struct ofputil_meter_band *mb, | |
1904 | struct ofpbuf *msg) | |
1905 | { | |
1906 | uint16_t n = 0; | |
1907 | ||
1908 | for (n = 0; n < n_bands; ++n) { | |
0445637d | 1909 | /* Currently all band types have same size. */ |
638a19b0 JR |
1910 | struct ofp13_meter_band_dscp_remark *ombh; |
1911 | size_t ombh_len = sizeof *ombh; | |
1912 | ||
1913 | ombh = ofpbuf_put_zeros(msg, ombh_len); | |
1914 | ||
1915 | ombh->type = htons(mb->type); | |
1916 | ombh->len = htons(ombh_len); | |
1917 | ombh->rate = htonl(mb->rate); | |
1918 | ombh->burst_size = htonl(mb->burst_size); | |
1919 | ombh->prec_level = mb->prec_level; | |
1920 | ||
1921 | mb++; | |
1922 | } | |
1923 | } | |
1924 | ||
1925 | /* Encode a meter stat for 'mc' and append it to 'replies'. */ | |
1926 | void | |
ca6ba700 | 1927 | ofputil_append_meter_config(struct ovs_list *replies, |
638a19b0 JR |
1928 | const struct ofputil_meter_config *mc) |
1929 | { | |
1930 | struct ofpbuf *msg = ofpbuf_from_list(list_back(replies)); | |
6fd6ed71 | 1931 | size_t start_ofs = msg->size; |
6a5490c6 | 1932 | struct ofp13_meter_config *reply; |
638a19b0 | 1933 | |
6a5490c6 | 1934 | ofpbuf_put_uninit(msg, sizeof *reply); |
638a19b0 JR |
1935 | ofputil_put_bands(mc->n_bands, mc->bands, msg); |
1936 | ||
32756a57 | 1937 | reply = ofpbuf_at_assert(msg, start_ofs, sizeof *reply); |
6a5490c6 BP |
1938 | reply->flags = htons(mc->flags); |
1939 | reply->meter_id = htonl(mc->meter_id); | |
6fd6ed71 | 1940 | reply->length = htons(msg->size - start_ofs); |
638a19b0 JR |
1941 | |
1942 | ofpmp_postappend(replies, start_ofs); | |
1943 | } | |
1944 | ||
1945 | /* Encode a meter stat for 'ms' and append it to 'replies'. */ | |
1946 | void | |
ca6ba700 | 1947 | ofputil_append_meter_stats(struct ovs_list *replies, |
638a19b0 JR |
1948 | const struct ofputil_meter_stats *ms) |
1949 | { | |
1950 | struct ofp13_meter_stats *reply; | |
1951 | uint16_t n = 0; | |
1952 | uint16_t len; | |
1953 | ||
1954 | len = sizeof *reply + ms->n_bands * sizeof(struct ofp13_meter_band_stats); | |
1955 | reply = ofpmp_append(replies, len); | |
1956 | ||
1957 | reply->meter_id = htonl(ms->meter_id); | |
1958 | reply->len = htons(len); | |
1959 | memset(reply->pad, 0, sizeof reply->pad); | |
1960 | reply->flow_count = htonl(ms->flow_count); | |
1961 | reply->packet_in_count = htonll(ms->packet_in_count); | |
1962 | reply->byte_in_count = htonll(ms->byte_in_count); | |
1963 | reply->duration_sec = htonl(ms->duration_sec); | |
1964 | reply->duration_nsec = htonl(ms->duration_nsec); | |
1965 | ||
1966 | for (n = 0; n < ms->n_bands; ++n) { | |
1967 | const struct ofputil_meter_band_stats *src = &ms->bands[n]; | |
1968 | struct ofp13_meter_band_stats *dst = &reply->band_stats[n]; | |
1969 | ||
1970 | dst->packet_band_count = htonll(src->packet_count); | |
1971 | dst->byte_band_count = htonll(src->byte_count); | |
1972 | } | |
1973 | } | |
1974 | ||
1975 | /* Converts an OFPMP_METER_CONFIG reply in 'msg' into an abstract | |
1976 | * ofputil_meter_config in 'mc', with mc->bands pointing to bands decoded into | |
1977 | * 'bands'. The caller must have initialized 'bands' and retains ownership of | |
1978 | * it across the call. | |
1979 | * | |
1980 | * Multiple OFPST13_METER_CONFIG replies can be packed into a single OpenFlow | |
1981 | * message. Calling this function multiple times for a single 'msg' iterates | |
1982 | * through the replies. 'bands' is cleared for each reply. | |
1983 | * | |
1984 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
1985 | * otherwise a positive errno value. */ | |
1986 | int | |
1987 | ofputil_decode_meter_config(struct ofpbuf *msg, | |
1988 | struct ofputil_meter_config *mc, | |
1989 | struct ofpbuf *bands) | |
1990 | { | |
1991 | const struct ofp13_meter_config *omc; | |
1992 | enum ofperr err; | |
1993 | ||
1994 | /* Pull OpenFlow headers for the first call. */ | |
6fd6ed71 | 1995 | if (!msg->header) { |
638a19b0 JR |
1996 | ofpraw_pull_assert(msg); |
1997 | } | |
1998 | ||
6fd6ed71 | 1999 | if (!msg->size) { |
638a19b0 JR |
2000 | return EOF; |
2001 | } | |
2002 | ||
2003 | omc = ofpbuf_try_pull(msg, sizeof *omc); | |
2004 | if (!omc) { | |
0445637d | 2005 | VLOG_WARN_RL(&bad_ofmsg_rl, |
437d0d22 | 2006 | "OFPMP_METER_CONFIG reply has %"PRIu32" leftover bytes at end", |
6fd6ed71 | 2007 | msg->size); |
638a19b0 JR |
2008 | return OFPERR_OFPBRC_BAD_LEN; |
2009 | } | |
2010 | ||
2011 | ofpbuf_clear(bands); | |
2012 | err = ofputil_pull_bands(msg, ntohs(omc->length) - sizeof *omc, | |
2013 | &mc->n_bands, bands); | |
2014 | if (err) { | |
2015 | return err; | |
2016 | } | |
2017 | mc->meter_id = ntohl(omc->meter_id); | |
2018 | mc->flags = ntohs(omc->flags); | |
6fd6ed71 | 2019 | mc->bands = bands->data; |
638a19b0 JR |
2020 | |
2021 | return 0; | |
2022 | } | |
2023 | ||
2024 | static enum ofperr | |
2025 | ofputil_pull_band_stats(struct ofpbuf *msg, size_t len, uint16_t *n_bands, | |
2026 | struct ofpbuf *bands) | |
2027 | { | |
2028 | const struct ofp13_meter_band_stats *ombs; | |
2029 | struct ofputil_meter_band_stats *mbs; | |
2030 | uint16_t n, i; | |
2031 | ||
0445637d JR |
2032 | ombs = ofpbuf_try_pull(msg, len); |
2033 | if (!ombs) { | |
2034 | return OFPERR_OFPBRC_BAD_LEN; | |
2035 | } | |
2036 | ||
638a19b0 JR |
2037 | n = len / sizeof *ombs; |
2038 | if (len != n * sizeof *ombs) { | |
2039 | return OFPERR_OFPBRC_BAD_LEN; | |
2040 | } | |
2041 | ||
638a19b0 JR |
2042 | mbs = ofpbuf_put_uninit(bands, len); |
2043 | ||
2044 | for (i = 0; i < n; ++i) { | |
2045 | mbs[i].packet_count = ntohll(ombs[i].packet_band_count); | |
2046 | mbs[i].byte_count = ntohll(ombs[i].byte_band_count); | |
2047 | } | |
2048 | *n_bands = n; | |
2049 | return 0; | |
2050 | } | |
2051 | ||
2052 | /* Converts an OFPMP_METER reply in 'msg' into an abstract | |
2053 | * ofputil_meter_stats in 'ms', with ms->bands pointing to band stats | |
2054 | * decoded into 'bands'. | |
2055 | * | |
2056 | * Multiple OFPMP_METER replies can be packed into a single OpenFlow | |
2057 | * message. Calling this function multiple times for a single 'msg' iterates | |
2058 | * through the replies. 'bands' is cleared for each reply. | |
2059 | * | |
2060 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
2061 | * otherwise a positive errno value. */ | |
2062 | int | |
2063 | ofputil_decode_meter_stats(struct ofpbuf *msg, | |
2064 | struct ofputil_meter_stats *ms, | |
2065 | struct ofpbuf *bands) | |
2066 | { | |
2067 | const struct ofp13_meter_stats *oms; | |
638a19b0 JR |
2068 | enum ofperr err; |
2069 | ||
2070 | /* Pull OpenFlow headers for the first call. */ | |
6fd6ed71 | 2071 | if (!msg->header) { |
638a19b0 JR |
2072 | ofpraw_pull_assert(msg); |
2073 | } | |
2074 | ||
6fd6ed71 | 2075 | if (!msg->size) { |
638a19b0 JR |
2076 | return EOF; |
2077 | } | |
2078 | ||
2079 | oms = ofpbuf_try_pull(msg, sizeof *oms); | |
2080 | if (!oms) { | |
0445637d | 2081 | VLOG_WARN_RL(&bad_ofmsg_rl, |
437d0d22 | 2082 | "OFPMP_METER reply has %"PRIu32" leftover bytes at end", |
6fd6ed71 | 2083 | msg->size); |
638a19b0 JR |
2084 | return OFPERR_OFPBRC_BAD_LEN; |
2085 | } | |
638a19b0 JR |
2086 | |
2087 | ofpbuf_clear(bands); | |
0445637d JR |
2088 | err = ofputil_pull_band_stats(msg, ntohs(oms->len) - sizeof *oms, |
2089 | &ms->n_bands, bands); | |
638a19b0 JR |
2090 | if (err) { |
2091 | return err; | |
2092 | } | |
2093 | ms->meter_id = ntohl(oms->meter_id); | |
2094 | ms->flow_count = ntohl(oms->flow_count); | |
2095 | ms->packet_in_count = ntohll(oms->packet_in_count); | |
2096 | ms->byte_in_count = ntohll(oms->byte_in_count); | |
2097 | ms->duration_sec = ntohl(oms->duration_sec); | |
2098 | ms->duration_nsec = ntohl(oms->duration_nsec); | |
6fd6ed71 | 2099 | ms->bands = bands->data; |
638a19b0 JR |
2100 | |
2101 | return 0; | |
2102 | } | |
2103 | ||
2104 | void | |
2105 | ofputil_decode_meter_features(const struct ofp_header *oh, | |
2106 | struct ofputil_meter_features *mf) | |
2107 | { | |
2108 | const struct ofp13_meter_features *omf = ofpmsg_body(oh); | |
2109 | ||
2110 | mf->max_meters = ntohl(omf->max_meter); | |
2111 | mf->band_types = ntohl(omf->band_types); | |
2112 | mf->capabilities = ntohl(omf->capabilities); | |
2113 | mf->max_bands = omf->max_bands; | |
2114 | mf->max_color = omf->max_color; | |
2115 | } | |
2116 | ||
2117 | struct ofpbuf * | |
2118 | ofputil_encode_meter_features_reply(const struct ofputil_meter_features *mf, | |
2119 | const struct ofp_header *request) | |
2120 | { | |
2121 | struct ofpbuf *reply; | |
2122 | struct ofp13_meter_features *omf; | |
2123 | ||
2124 | reply = ofpraw_alloc_stats_reply(request, 0); | |
2125 | omf = ofpbuf_put_zeros(reply, sizeof *omf); | |
2126 | ||
2127 | omf->max_meter = htonl(mf->max_meters); | |
2128 | omf->band_types = htonl(mf->band_types); | |
2129 | omf->capabilities = htonl(mf->capabilities); | |
2130 | omf->max_bands = mf->max_bands; | |
2131 | omf->max_color = mf->max_color; | |
2132 | ||
2133 | return reply; | |
2134 | } | |
2135 | ||
2136 | struct ofpbuf * | |
2137 | ofputil_encode_meter_mod(enum ofp_version ofp_version, | |
2138 | const struct ofputil_meter_mod *mm) | |
2139 | { | |
2140 | struct ofpbuf *msg; | |
2141 | ||
2142 | struct ofp13_meter_mod *omm; | |
2143 | ||
2144 | msg = ofpraw_alloc(OFPRAW_OFPT13_METER_MOD, ofp_version, | |
2145 | NXM_TYPICAL_LEN + mm->meter.n_bands * 16); | |
2146 | omm = ofpbuf_put_zeros(msg, sizeof *omm); | |
2147 | omm->command = htons(mm->command); | |
2148 | if (mm->command != OFPMC13_DELETE) { | |
2149 | omm->flags = htons(mm->meter.flags); | |
2150 | } | |
2151 | omm->meter_id = htonl(mm->meter.meter_id); | |
2152 | ||
2153 | ofputil_put_bands(mm->meter.n_bands, mm->meter.bands, msg); | |
2154 | ||
2155 | ofpmsg_update_length(msg); | |
2156 | return msg; | |
2157 | } | |
2158 | ||
aa6305ea SH |
2159 | static ovs_be16 |
2160 | ofputil_tid_command(const struct ofputil_flow_mod *fm, | |
2161 | enum ofputil_protocol protocol) | |
2162 | { | |
2163 | return htons(protocol & OFPUTIL_P_TID | |
2164 | ? (fm->command & 0xff) | (fm->table_id << 8) | |
2165 | : fm->command); | |
2166 | } | |
2167 | ||
2e4f5fcf | 2168 | /* Converts 'fm' into an OFPT_FLOW_MOD or NXT_FLOW_MOD message according to |
6cbe2c0f | 2169 | * 'protocol' and returns the message. */ |
2e4f5fcf | 2170 | struct ofpbuf * |
a9a2da38 | 2171 | ofputil_encode_flow_mod(const struct ofputil_flow_mod *fm, |
27527aa0 | 2172 | enum ofputil_protocol protocol) |
2e4f5fcf | 2173 | { |
0fb88c18 BP |
2174 | enum ofp_version version = ofputil_protocol_to_ofp_version(protocol); |
2175 | ovs_be16 raw_flags = ofputil_encode_flow_mod_flags(fm->flags, version); | |
2e4f5fcf BP |
2176 | struct ofpbuf *msg; |
2177 | ||
27527aa0 | 2178 | switch (protocol) { |
75fa58f8 | 2179 | case OFPUTIL_P_OF11_STD: |
2e1ae200 | 2180 | case OFPUTIL_P_OF12_OXM: |
c37c0382 | 2181 | case OFPUTIL_P_OF13_OXM: |
42dccab5 BP |
2182 | case OFPUTIL_P_OF14_OXM: |
2183 | case OFPUTIL_P_OF15_OXM: { | |
aa6305ea | 2184 | struct ofp11_flow_mod *ofm; |
75fa58f8 | 2185 | int tailroom; |
aa6305ea | 2186 | |
75fa58f8 | 2187 | tailroom = ofputil_match_typical_len(protocol) + fm->ofpacts_len; |
0fb88c18 | 2188 | msg = ofpraw_alloc(OFPRAW_OFPT11_FLOW_MOD, version, tailroom); |
aa6305ea | 2189 | ofm = ofpbuf_put_zeros(msg, sizeof *ofm); |
75fa58f8 BP |
2190 | if ((protocol == OFPUTIL_P_OF11_STD |
2191 | && (fm->command == OFPFC_MODIFY || | |
2192 | fm->command == OFPFC_MODIFY_STRICT) | |
2193 | && fm->cookie_mask == htonll(0)) | |
2194 | || fm->command == OFPFC_ADD) { | |
a5ff8823 SH |
2195 | ofm->cookie = fm->new_cookie; |
2196 | } else { | |
ba5cc068 | 2197 | ofm->cookie = fm->cookie & fm->cookie_mask; |
a5ff8823 | 2198 | } |
aa6305ea | 2199 | ofm->cookie_mask = fm->cookie_mask; |
083761ad | 2200 | if (fm->table_id != OFPTT_ALL |
0e197060 BP |
2201 | || (protocol != OFPUTIL_P_OF11_STD |
2202 | && (fm->command == OFPFC_DELETE || | |
2203 | fm->command == OFPFC_DELETE_STRICT))) { | |
2204 | ofm->table_id = fm->table_id; | |
2205 | } else { | |
2206 | ofm->table_id = 0; | |
2207 | } | |
aa6305ea SH |
2208 | ofm->command = fm->command; |
2209 | ofm->idle_timeout = htons(fm->idle_timeout); | |
2210 | ofm->hard_timeout = htons(fm->hard_timeout); | |
81a76618 | 2211 | ofm->priority = htons(fm->priority); |
aa6305ea SH |
2212 | ofm->buffer_id = htonl(fm->buffer_id); |
2213 | ofm->out_port = ofputil_port_to_ofp11(fm->out_port); | |
7395c052 | 2214 | ofm->out_group = htonl(fm->out_group); |
0fb88c18 | 2215 | ofm->flags = raw_flags; |
ca26eb44 RB |
2216 | if (version >= OFP14_VERSION && fm->command == OFPFC_ADD) { |
2217 | ofm->importance = htons(fm->importance); | |
2218 | } else { | |
2219 | ofm->importance = 0; | |
2220 | } | |
75fa58f8 | 2221 | ofputil_put_ofp11_match(msg, &fm->match, protocol); |
e3f8f887 JR |
2222 | ofpacts_put_openflow_instructions(fm->ofpacts, fm->ofpacts_len, msg, |
2223 | version); | |
aa6305ea SH |
2224 | break; |
2225 | } | |
2226 | ||
85813857 BP |
2227 | case OFPUTIL_P_OF10_STD: |
2228 | case OFPUTIL_P_OF10_STD_TID: { | |
3f192f23 SH |
2229 | struct ofp10_flow_mod *ofm; |
2230 | ||
982697a4 BP |
2231 | msg = ofpraw_alloc(OFPRAW_OFPT10_FLOW_MOD, OFP10_VERSION, |
2232 | fm->ofpacts_len); | |
2233 | ofm = ofpbuf_put_zeros(msg, sizeof *ofm); | |
81a76618 | 2234 | ofputil_match_to_ofp10_match(&fm->match, &ofm->match); |
623e1caf | 2235 | ofm->cookie = fm->new_cookie; |
aa6305ea | 2236 | ofm->command = ofputil_tid_command(fm, protocol); |
2e4f5fcf BP |
2237 | ofm->idle_timeout = htons(fm->idle_timeout); |
2238 | ofm->hard_timeout = htons(fm->hard_timeout); | |
81a76618 | 2239 | ofm->priority = htons(fm->priority); |
2e4f5fcf | 2240 | ofm->buffer_id = htonl(fm->buffer_id); |
4e022ec0 | 2241 | ofm->out_port = htons(ofp_to_u16(fm->out_port)); |
0fb88c18 | 2242 | ofm->flags = raw_flags; |
e3f8f887 JR |
2243 | ofpacts_put_openflow_actions(fm->ofpacts, fm->ofpacts_len, msg, |
2244 | version); | |
27527aa0 | 2245 | break; |
3f192f23 | 2246 | } |
2e4f5fcf | 2247 | |
85813857 BP |
2248 | case OFPUTIL_P_OF10_NXM: |
2249 | case OFPUTIL_P_OF10_NXM_TID: { | |
3f192f23 SH |
2250 | struct nx_flow_mod *nfm; |
2251 | int match_len; | |
2252 | ||
982697a4 BP |
2253 | msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MOD, OFP10_VERSION, |
2254 | NXM_TYPICAL_LEN + fm->ofpacts_len); | |
2255 | nfm = ofpbuf_put_zeros(msg, sizeof *nfm); | |
aa6305ea | 2256 | nfm->command = ofputil_tid_command(fm, protocol); |
623e1caf | 2257 | nfm->cookie = fm->new_cookie; |
81a76618 | 2258 | match_len = nx_put_match(msg, &fm->match, fm->cookie, fm->cookie_mask); |
6fd6ed71 | 2259 | nfm = msg->msg; |
2e4f5fcf BP |
2260 | nfm->idle_timeout = htons(fm->idle_timeout); |
2261 | nfm->hard_timeout = htons(fm->hard_timeout); | |
81a76618 | 2262 | nfm->priority = htons(fm->priority); |
2e4f5fcf | 2263 | nfm->buffer_id = htonl(fm->buffer_id); |
4e022ec0 | 2264 | nfm->out_port = htons(ofp_to_u16(fm->out_port)); |
0fb88c18 | 2265 | nfm->flags = raw_flags; |
2e4f5fcf | 2266 | nfm->match_len = htons(match_len); |
e3f8f887 JR |
2267 | ofpacts_put_openflow_actions(fm->ofpacts, fm->ofpacts_len, msg, |
2268 | version); | |
27527aa0 | 2269 | break; |
3f192f23 | 2270 | } |
27527aa0 BP |
2271 | |
2272 | default: | |
428b2edd | 2273 | OVS_NOT_REACHED(); |
2e4f5fcf BP |
2274 | } |
2275 | ||
982697a4 | 2276 | ofpmsg_update_length(msg); |
2e4f5fcf BP |
2277 | return msg; |
2278 | } | |
2279 | ||
90bf1e07 | 2280 | static enum ofperr |
0157ad3a SH |
2281 | ofputil_decode_ofpst10_flow_request(struct ofputil_flow_stats_request *fsr, |
2282 | const struct ofp10_flow_stats_request *ofsr, | |
2283 | bool aggregate) | |
2e4f5fcf | 2284 | { |
2e4f5fcf | 2285 | fsr->aggregate = aggregate; |
81a76618 | 2286 | ofputil_match_from_ofp10_match(&ofsr->match, &fsr->match); |
4e022ec0 | 2287 | fsr->out_port = u16_to_ofp(ntohs(ofsr->out_port)); |
30ef36c6 | 2288 | fsr->out_group = OFPG_ANY; |
2e4f5fcf | 2289 | fsr->table_id = ofsr->table_id; |
e729e793 | 2290 | fsr->cookie = fsr->cookie_mask = htonll(0); |
2e4f5fcf BP |
2291 | |
2292 | return 0; | |
2293 | } | |
2294 | ||
0157ad3a SH |
2295 | static enum ofperr |
2296 | ofputil_decode_ofpst11_flow_request(struct ofputil_flow_stats_request *fsr, | |
2297 | struct ofpbuf *b, bool aggregate) | |
2298 | { | |
2299 | const struct ofp11_flow_stats_request *ofsr; | |
2300 | enum ofperr error; | |
2301 | ||
2302 | ofsr = ofpbuf_pull(b, sizeof *ofsr); | |
2303 | fsr->aggregate = aggregate; | |
2304 | fsr->table_id = ofsr->table_id; | |
2305 | error = ofputil_port_from_ofp11(ofsr->out_port, &fsr->out_port); | |
2306 | if (error) { | |
2307 | return error; | |
2308 | } | |
7395c052 | 2309 | fsr->out_group = ntohl(ofsr->out_group); |
0157ad3a SH |
2310 | fsr->cookie = ofsr->cookie; |
2311 | fsr->cookie_mask = ofsr->cookie_mask; | |
81a76618 | 2312 | error = ofputil_pull_ofp11_match(b, &fsr->match, NULL); |
0157ad3a SH |
2313 | if (error) { |
2314 | return error; | |
2315 | } | |
2316 | ||
2317 | return 0; | |
2318 | } | |
2319 | ||
90bf1e07 | 2320 | static enum ofperr |
81d1ea94 | 2321 | ofputil_decode_nxst_flow_request(struct ofputil_flow_stats_request *fsr, |
982697a4 | 2322 | struct ofpbuf *b, bool aggregate) |
2e4f5fcf BP |
2323 | { |
2324 | const struct nx_flow_stats_request *nfsr; | |
90bf1e07 | 2325 | enum ofperr error; |
2e4f5fcf | 2326 | |
982697a4 | 2327 | nfsr = ofpbuf_pull(b, sizeof *nfsr); |
81a76618 | 2328 | error = nx_pull_match(b, ntohs(nfsr->match_len), &fsr->match, |
e729e793 | 2329 | &fsr->cookie, &fsr->cookie_mask); |
2e4f5fcf BP |
2330 | if (error) { |
2331 | return error; | |
2332 | } | |
6fd6ed71 | 2333 | if (b->size) { |
90bf1e07 | 2334 | return OFPERR_OFPBRC_BAD_LEN; |
2e4f5fcf BP |
2335 | } |
2336 | ||
2337 | fsr->aggregate = aggregate; | |
4e022ec0 | 2338 | fsr->out_port = u16_to_ofp(ntohs(nfsr->out_port)); |
30ef36c6 | 2339 | fsr->out_group = OFPG_ANY; |
2e4f5fcf BP |
2340 | fsr->table_id = nfsr->table_id; |
2341 | ||
2342 | return 0; | |
2343 | } | |
2344 | ||
e8f9a7bb | 2345 | /* Constructs and returns an OFPT_QUEUE_GET_CONFIG request for the specified |
e016fb63 BP |
2346 | * 'port' and 'queue', suitable for OpenFlow version 'version'. |
2347 | * | |
2348 | * 'queue' is honored only for OpenFlow 1.4 and later; older versions always | |
2349 | * request all queues. */ | |
e8f9a7bb VG |
2350 | struct ofpbuf * |
2351 | ofputil_encode_queue_get_config_request(enum ofp_version version, | |
e016fb63 BP |
2352 | ofp_port_t port, |
2353 | uint32_t queue) | |
e8f9a7bb VG |
2354 | { |
2355 | struct ofpbuf *request; | |
2356 | ||
2357 | if (version == OFP10_VERSION) { | |
2358 | struct ofp10_queue_get_config_request *qgcr10; | |
2359 | ||
2360 | request = ofpraw_alloc(OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST, | |
2361 | version, 0); | |
2362 | qgcr10 = ofpbuf_put_zeros(request, sizeof *qgcr10); | |
2363 | qgcr10->port = htons(ofp_to_u16(port)); | |
e016fb63 | 2364 | } else if (version < OFP14_VERSION) { |
e8f9a7bb VG |
2365 | struct ofp11_queue_get_config_request *qgcr11; |
2366 | ||
2367 | request = ofpraw_alloc(OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST, | |
2368 | version, 0); | |
2369 | qgcr11 = ofpbuf_put_zeros(request, sizeof *qgcr11); | |
2370 | qgcr11->port = ofputil_port_to_ofp11(port); | |
e016fb63 BP |
2371 | } else { |
2372 | struct ofp14_queue_desc_request *qdr14; | |
2373 | ||
2374 | request = ofpraw_alloc(OFPRAW_OFPST14_QUEUE_DESC_REQUEST, | |
2375 | version, 0); | |
2376 | qdr14 = ofpbuf_put_zeros(request, sizeof *qdr14); | |
2377 | qdr14->port = ofputil_port_to_ofp11(port); | |
2378 | qdr14->queue = htonl(queue); | |
e8f9a7bb VG |
2379 | } |
2380 | ||
2381 | return request; | |
2382 | } | |
2383 | ||
2384 | /* Parses OFPT_QUEUE_GET_CONFIG request 'oh', storing the port specified by the | |
2385 | * request into '*port'. Returns 0 if successful, otherwise an OpenFlow error | |
2386 | * code. */ | |
2387 | enum ofperr | |
2388 | ofputil_decode_queue_get_config_request(const struct ofp_header *oh, | |
e016fb63 | 2389 | ofp_port_t *port, uint32_t *queue) |
e8f9a7bb VG |
2390 | { |
2391 | const struct ofp10_queue_get_config_request *qgcr10; | |
2392 | const struct ofp11_queue_get_config_request *qgcr11; | |
e016fb63 | 2393 | const struct ofp14_queue_desc_request *qdr14; |
e8f9a7bb VG |
2394 | enum ofpraw raw; |
2395 | struct ofpbuf b; | |
2396 | ||
2397 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
2398 | raw = ofpraw_pull_assert(&b); | |
2399 | ||
2400 | switch ((int) raw) { | |
2401 | case OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST: | |
6fd6ed71 | 2402 | qgcr10 = b.data; |
e8f9a7bb | 2403 | *port = u16_to_ofp(ntohs(qgcr10->port)); |
e016fb63 | 2404 | *queue = OFPQ_ALL; |
56085be5 | 2405 | break; |
e8f9a7bb VG |
2406 | |
2407 | case OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST: | |
6fd6ed71 | 2408 | qgcr11 = b.data; |
e016fb63 | 2409 | *queue = OFPQ_ALL; |
56085be5 BP |
2410 | enum ofperr error = ofputil_port_from_ofp11(qgcr11->port, port); |
2411 | if (error || *port == OFPP_ANY) { | |
2412 | return error; | |
2413 | } | |
2414 | break; | |
2415 | ||
e016fb63 BP |
2416 | case OFPRAW_OFPST14_QUEUE_DESC_REQUEST: |
2417 | qdr14 = b.data; | |
2418 | *queue = ntohl(qdr14->queue); | |
2419 | return ofputil_port_from_ofp11(qdr14->port, port); | |
2420 | ||
56085be5 BP |
2421 | default: |
2422 | OVS_NOT_REACHED(); | |
e8f9a7bb VG |
2423 | } |
2424 | ||
56085be5 BP |
2425 | return (ofp_to_u16(*port) < ofp_to_u16(OFPP_MAX) |
2426 | ? 0 | |
2427 | : OFPERR_OFPQOFC_BAD_PORT); | |
e8f9a7bb VG |
2428 | } |
2429 | ||
2430 | /* Constructs and returns the beginning of a reply to | |
e016fb63 BP |
2431 | * OFPT_QUEUE_GET_CONFIG_REQUEST or OFPMP_QUEUE_DESC request 'oh'. The caller |
2432 | * may append information about individual queues with | |
2433 | * ofputil_append_queue_get_config_reply(). */ | |
2434 | void | |
2435 | ofputil_start_queue_get_config_reply(const struct ofp_header *request, | |
2436 | struct ovs_list *replies) | |
e8f9a7bb | 2437 | { |
e8f9a7bb VG |
2438 | struct ofpbuf *reply; |
2439 | enum ofperr error; | |
e8f9a7bb | 2440 | ofp_port_t port; |
e016fb63 | 2441 | uint32_t queue; |
e8f9a7bb | 2442 | |
e016fb63 | 2443 | error = ofputil_decode_queue_get_config_request(request, &port, &queue); |
e8f9a7bb VG |
2444 | ovs_assert(!error); |
2445 | ||
e016fb63 | 2446 | enum ofpraw raw = ofpraw_decode_assert(request); |
e8f9a7bb VG |
2447 | switch ((int) raw) { |
2448 | case OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST: | |
2449 | reply = ofpraw_alloc_reply(OFPRAW_OFPT10_QUEUE_GET_CONFIG_REPLY, | |
e016fb63 BP |
2450 | request, 0); |
2451 | struct ofp10_queue_get_config_reply *qgcr10 | |
2452 | = ofpbuf_put_zeros(reply, sizeof *qgcr10); | |
e8f9a7bb VG |
2453 | qgcr10->port = htons(ofp_to_u16(port)); |
2454 | break; | |
2455 | ||
2456 | case OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST: | |
2457 | reply = ofpraw_alloc_reply(OFPRAW_OFPT11_QUEUE_GET_CONFIG_REPLY, | |
e016fb63 BP |
2458 | request, 0); |
2459 | struct ofp11_queue_get_config_reply *qgcr11 | |
2460 | = ofpbuf_put_zeros(reply, sizeof *qgcr11); | |
e8f9a7bb VG |
2461 | qgcr11->port = ofputil_port_to_ofp11(port); |
2462 | break; | |
2463 | ||
e016fb63 BP |
2464 | case OFPRAW_OFPST14_QUEUE_DESC_REQUEST: |
2465 | reply = ofpraw_alloc_stats_reply(request, 0); | |
2466 | break; | |
2467 | ||
e8f9a7bb | 2468 | default: |
428b2edd | 2469 | OVS_NOT_REACHED(); |
e8f9a7bb VG |
2470 | } |
2471 | ||
e016fb63 BP |
2472 | list_init(replies); |
2473 | list_push_back(replies, &reply->list_node); | |
e8f9a7bb VG |
2474 | } |
2475 | ||
2476 | static void | |
d2e5fa1f BP |
2477 | put_ofp10_queue_rate(struct ofpbuf *reply, |
2478 | enum ofp10_queue_properties property, uint16_t rate) | |
e8f9a7bb VG |
2479 | { |
2480 | if (rate != UINT16_MAX) { | |
d2e5fa1f | 2481 | struct ofp10_queue_prop_rate *oqpr; |
e8f9a7bb VG |
2482 | |
2483 | oqpr = ofpbuf_put_zeros(reply, sizeof *oqpr); | |
2484 | oqpr->prop_header.property = htons(property); | |
2485 | oqpr->prop_header.len = htons(sizeof *oqpr); | |
2486 | oqpr->rate = htons(rate); | |
2487 | } | |
2488 | } | |
2489 | ||
e016fb63 BP |
2490 | static void |
2491 | put_ofp14_queue_rate(struct ofpbuf *reply, | |
2492 | enum ofp14_queue_desc_prop_type type, uint16_t rate) | |
2493 | { | |
2494 | if (rate != UINT16_MAX) { | |
2495 | ofpprop_put_u16(reply, type, rate); | |
2496 | } | |
2497 | } | |
2498 | ||
e8f9a7bb | 2499 | void |
e016fb63 BP |
2500 | ofputil_append_queue_get_config_reply(const struct ofputil_queue_config *qc, |
2501 | struct ovs_list *replies) | |
e8f9a7bb | 2502 | { |
e016fb63 BP |
2503 | enum ofp_version ofp_version = ofpmp_version(replies); |
2504 | struct ofpbuf *reply = ofpbuf_from_list(list_back(replies)); | |
2505 | size_t start_ofs = reply->size; | |
2506 | size_t len_ofs; | |
e8f9a7bb VG |
2507 | ovs_be16 *len; |
2508 | ||
e016fb63 BP |
2509 | if (ofp_version < OFP14_VERSION) { |
2510 | if (ofp_version < OFP12_VERSION) { | |
2511 | struct ofp10_packet_queue *opq10; | |
e8f9a7bb | 2512 | |
e016fb63 BP |
2513 | opq10 = ofpbuf_put_zeros(reply, sizeof *opq10); |
2514 | opq10->queue_id = htonl(qc->queue); | |
2515 | len_ofs = (char *) &opq10->len - (char *) reply->data; | |
2516 | } else { | |
2517 | struct ofp12_packet_queue *opq12; | |
e8f9a7bb | 2518 | |
e016fb63 BP |
2519 | opq12 = ofpbuf_put_zeros(reply, sizeof *opq12); |
2520 | opq12->port = ofputil_port_to_ofp11(qc->port); | |
2521 | opq12->queue_id = htonl(qc->queue); | |
2522 | len_ofs = (char *) &opq12->len - (char *) reply->data; | |
2523 | } | |
e8f9a7bb | 2524 | |
e016fb63 BP |
2525 | put_ofp10_queue_rate(reply, OFPQT10_MIN_RATE, qc->min_rate); |
2526 | put_ofp10_queue_rate(reply, OFPQT11_MAX_RATE, qc->max_rate); | |
2527 | } else { | |
2528 | struct ofp14_queue_desc *oqd = ofpbuf_put_zeros(reply, sizeof *oqd); | |
2529 | oqd->port_no = ofputil_port_to_ofp11(qc->port); | |
2530 | oqd->queue_id = htonl(qc->queue); | |
2531 | len_ofs = (char *) &oqd->len - (char *) reply->data; | |
2532 | put_ofp14_queue_rate(reply, OFPQDPT14_MIN_RATE, qc->min_rate); | |
2533 | put_ofp14_queue_rate(reply, OFPQDPT14_MAX_RATE, qc->max_rate); | |
2534 | } | |
e8f9a7bb VG |
2535 | |
2536 | len = ofpbuf_at(reply, len_ofs, sizeof *len); | |
6fd6ed71 | 2537 | *len = htons(reply->size - start_ofs); |
e8f9a7bb | 2538 | |
e016fb63 BP |
2539 | if (ofp_version >= OFP14_VERSION) { |
2540 | ofpmp_postappend(replies, start_ofs); | |
e8f9a7bb | 2541 | } |
e8f9a7bb VG |
2542 | } |
2543 | ||
2544 | static enum ofperr | |
d2e5fa1f BP |
2545 | parse_ofp10_queue_rate(const struct ofp10_queue_prop_header *hdr, |
2546 | uint16_t *rate) | |
e8f9a7bb | 2547 | { |
d2e5fa1f | 2548 | const struct ofp10_queue_prop_rate *oqpr; |
e8f9a7bb VG |
2549 | |
2550 | if (hdr->len == htons(sizeof *oqpr)) { | |
d2e5fa1f | 2551 | oqpr = (const struct ofp10_queue_prop_rate *) hdr; |
e8f9a7bb VG |
2552 | *rate = ntohs(oqpr->rate); |
2553 | return 0; | |
2554 | } else { | |
2555 | return OFPERR_OFPBRC_BAD_LEN; | |
2556 | } | |
2557 | } | |
2558 | ||
e016fb63 BP |
2559 | static int |
2560 | ofputil_pull_queue_get_config_reply10(struct ofpbuf *msg, | |
2561 | struct ofputil_queue_config *queue) | |
e8f9a7bb | 2562 | { |
e016fb63 BP |
2563 | const struct ofp_header *oh = msg->header; |
2564 | unsigned int opq_len; /* Length of protocol-specific queue header. */ | |
2565 | unsigned int len; /* Total length of queue + properties. */ | |
e8f9a7bb | 2566 | |
e016fb63 BP |
2567 | /* Obtain the port number from the message header. */ |
2568 | if (oh->version == OFP10_VERSION) { | |
2569 | const struct ofp10_queue_get_config_reply *oqgcr10 = msg->msg; | |
2570 | queue->port = u16_to_ofp(ntohs(oqgcr10->port)); | |
2571 | } else { | |
2572 | const struct ofp11_queue_get_config_reply *oqgcr11 = msg->msg; | |
2573 | enum ofperr error = ofputil_port_from_ofp11(oqgcr11->port, | |
2574 | &queue->port); | |
2575 | if (error) { | |
2576 | return error; | |
2577 | } | |
e8f9a7bb VG |
2578 | } |
2579 | ||
e016fb63 | 2580 | /* Pull off the queue header and get the queue number and length. */ |
e8f9a7bb VG |
2581 | if (oh->version < OFP12_VERSION) { |
2582 | const struct ofp10_packet_queue *opq10; | |
e016fb63 | 2583 | opq10 = ofpbuf_try_pull(msg, sizeof *opq10); |
e8f9a7bb VG |
2584 | if (!opq10) { |
2585 | return OFPERR_OFPBRC_BAD_LEN; | |
2586 | } | |
e016fb63 | 2587 | queue->queue = ntohl(opq10->queue_id); |
e8f9a7bb VG |
2588 | len = ntohs(opq10->len); |
2589 | opq_len = sizeof *opq10; | |
2590 | } else { | |
2591 | const struct ofp12_packet_queue *opq12; | |
e016fb63 | 2592 | opq12 = ofpbuf_try_pull(msg, sizeof *opq12); |
e8f9a7bb VG |
2593 | if (!opq12) { |
2594 | return OFPERR_OFPBRC_BAD_LEN; | |
2595 | } | |
e016fb63 | 2596 | queue->queue = ntohl(opq12->queue_id); |
e8f9a7bb VG |
2597 | len = ntohs(opq12->len); |
2598 | opq_len = sizeof *opq12; | |
2599 | } | |
2600 | ||
e016fb63 BP |
2601 | /* Length check. */ |
2602 | if (len < opq_len || len > msg->size + opq_len || len % 8) { | |
e8f9a7bb VG |
2603 | return OFPERR_OFPBRC_BAD_LEN; |
2604 | } | |
2605 | len -= opq_len; | |
2606 | ||
e016fb63 BP |
2607 | /* Pull properties. The format of these properties differs from used in |
2608 | * OF1.4+ so we can't use the common property functions. */ | |
e8f9a7bb | 2609 | while (len > 0) { |
d2e5fa1f | 2610 | const struct ofp10_queue_prop_header *hdr; |
e8f9a7bb VG |
2611 | unsigned int property; |
2612 | unsigned int prop_len; | |
2613 | enum ofperr error = 0; | |
2614 | ||
e016fb63 | 2615 | hdr = ofpbuf_at_assert(msg, 0, sizeof *hdr); |
e8f9a7bb | 2616 | prop_len = ntohs(hdr->len); |
e016fb63 | 2617 | if (prop_len < sizeof *hdr || prop_len > msg->size || prop_len % 8) { |
e8f9a7bb VG |
2618 | return OFPERR_OFPBRC_BAD_LEN; |
2619 | } | |
2620 | ||
2621 | property = ntohs(hdr->property); | |
2622 | switch (property) { | |
d2e5fa1f BP |
2623 | case OFPQT10_MIN_RATE: |
2624 | error = parse_ofp10_queue_rate(hdr, &queue->min_rate); | |
e8f9a7bb VG |
2625 | break; |
2626 | ||
d2e5fa1f BP |
2627 | case OFPQT11_MAX_RATE: |
2628 | error = parse_ofp10_queue_rate(hdr, &queue->max_rate); | |
e8f9a7bb VG |
2629 | break; |
2630 | ||
2631 | default: | |
2632 | VLOG_INFO_RL(&bad_ofmsg_rl, "unknown queue property %u", property); | |
2633 | break; | |
2634 | } | |
2635 | if (error) { | |
2636 | return error; | |
2637 | } | |
2638 | ||
e016fb63 | 2639 | ofpbuf_pull(msg, prop_len); |
e8f9a7bb VG |
2640 | len -= prop_len; |
2641 | } | |
2642 | return 0; | |
2643 | } | |
2644 | ||
e016fb63 BP |
2645 | static int |
2646 | ofputil_pull_queue_get_config_reply14(struct ofpbuf *msg, | |
2647 | struct ofputil_queue_config *queue) | |
2648 | { | |
2649 | struct ofp14_queue_desc *oqd14 = ofpbuf_try_pull(msg, sizeof *oqd14); | |
2650 | if (!oqd14) { | |
2651 | return OFPERR_OFPBRC_BAD_LEN; | |
2652 | } | |
2653 | enum ofperr error = ofputil_port_from_ofp11(oqd14->port_no, &queue->port); | |
2654 | if (error) { | |
2655 | return error; | |
2656 | } | |
2657 | queue->queue = ntohl(oqd14->queue_id); | |
2658 | ||
2659 | /* Length check. */ | |
2660 | unsigned int len = ntohs(oqd14->len); | |
2661 | if (len < sizeof *oqd14 || len > msg->size + sizeof *oqd14 || len % 8) { | |
2662 | return OFPERR_OFPBRC_BAD_LEN; | |
2663 | } | |
2664 | len -= sizeof *oqd14; | |
2665 | ||
2666 | struct ofpbuf properties; | |
2667 | ofpbuf_use_const(&properties, ofpbuf_pull(msg, len), len); | |
2668 | while (properties.size > 0) { | |
2669 | struct ofpbuf payload; | |
2670 | uint64_t type; | |
2671 | ||
2672 | error = ofpprop_pull(&properties, &payload, &type); | |
2673 | if (error) { | |
2674 | return error; | |
2675 | } | |
2676 | ||
2677 | switch (type) { | |
2678 | case OFPQDPT14_MIN_RATE: | |
2679 | error = ofpprop_parse_u16(&payload, &queue->min_rate); | |
2680 | break; | |
2681 | ||
2682 | case OFPQDPT14_MAX_RATE: | |
2683 | error = ofpprop_parse_u16(&payload, &queue->max_rate); | |
2684 | break; | |
2685 | ||
2686 | default: | |
2687 | error = OFPPROP_UNKNOWN(true, "queue desc", type); | |
2688 | break; | |
2689 | } | |
2690 | ||
2691 | if (error) { | |
2692 | return error; | |
2693 | } | |
2694 | } | |
2695 | ||
2696 | return 0; | |
2697 | } | |
2698 | ||
2699 | /* Decodes information about a queue from the OFPT_QUEUE_GET_CONFIG_REPLY in | |
2700 | * 'reply' and stores it in '*queue'. ofputil_decode_queue_get_config_reply() | |
2701 | * must already have pulled off the main header. | |
2702 | * | |
2703 | * This function returns EOF if the last queue has already been decoded, 0 if a | |
2704 | * queue was successfully decoded into '*queue', or an ofperr if there was a | |
2705 | * problem decoding 'reply'. */ | |
2706 | int | |
2707 | ofputil_pull_queue_get_config_reply(struct ofpbuf *msg, | |
2708 | struct ofputil_queue_config *queue) | |
2709 | { | |
2710 | enum ofpraw raw; | |
2711 | if (!msg->header) { | |
2712 | /* Pull OpenFlow header. */ | |
2713 | raw = ofpraw_pull_assert(msg); | |
2714 | ||
2715 | /* Pull protocol-specific ofp_queue_get_config_reply header (OF1.4 | |
2716 | * doesn't have one at all). */ | |
2717 | if (raw == OFPRAW_OFPT10_QUEUE_GET_CONFIG_REPLY) { | |
2718 | ofpbuf_pull(msg, sizeof(struct ofp10_queue_get_config_reply)); | |
2719 | } else if (raw == OFPRAW_OFPT11_QUEUE_GET_CONFIG_REPLY) { | |
2720 | ofpbuf_pull(msg, sizeof(struct ofp11_queue_get_config_reply)); | |
2721 | } else { | |
2722 | ovs_assert(raw == OFPRAW_OFPST14_QUEUE_DESC_REPLY); | |
2723 | } | |
2724 | } else { | |
2725 | raw = ofpraw_decode_assert(msg->header); | |
2726 | } | |
2727 | ||
2728 | queue->min_rate = UINT16_MAX; | |
2729 | queue->max_rate = UINT16_MAX; | |
2730 | ||
2731 | if (!msg->size) { | |
2732 | return EOF; | |
2733 | } else if (raw == OFPRAW_OFPST14_QUEUE_DESC_REPLY) { | |
2734 | return ofputil_pull_queue_get_config_reply14(msg, queue); | |
2735 | } else { | |
2736 | return ofputil_pull_queue_get_config_reply10(msg, queue); | |
2737 | } | |
2738 | } | |
2739 | ||
2e4f5fcf | 2740 | /* Converts an OFPST_FLOW, OFPST_AGGREGATE, NXST_FLOW, or NXST_AGGREGATE |
b78f6b77 BP |
2741 | * request 'oh', into an abstract flow_stats_request in 'fsr'. Returns 0 if |
2742 | * successful, otherwise an OpenFlow error code. */ | |
90bf1e07 | 2743 | enum ofperr |
81d1ea94 | 2744 | ofputil_decode_flow_stats_request(struct ofputil_flow_stats_request *fsr, |
b78f6b77 | 2745 | const struct ofp_header *oh) |
2e4f5fcf | 2746 | { |
982697a4 | 2747 | enum ofpraw raw; |
2e4f5fcf | 2748 | struct ofpbuf b; |
2e4f5fcf | 2749 | |
2013493b | 2750 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
982697a4 BP |
2751 | raw = ofpraw_pull_assert(&b); |
2752 | switch ((int) raw) { | |
cfc23141 | 2753 | case OFPRAW_OFPST10_FLOW_REQUEST: |
6fd6ed71 | 2754 | return ofputil_decode_ofpst10_flow_request(fsr, b.data, false); |
2e4f5fcf | 2755 | |
617da9cd | 2756 | case OFPRAW_OFPST10_AGGREGATE_REQUEST: |
6fd6ed71 | 2757 | return ofputil_decode_ofpst10_flow_request(fsr, b.data, true); |
0157ad3a SH |
2758 | |
2759 | case OFPRAW_OFPST11_FLOW_REQUEST: | |
2760 | return ofputil_decode_ofpst11_flow_request(fsr, &b, false); | |
2e4f5fcf | 2761 | |
617da9cd SH |
2762 | case OFPRAW_OFPST11_AGGREGATE_REQUEST: |
2763 | return ofputil_decode_ofpst11_flow_request(fsr, &b, true); | |
2764 | ||
982697a4 BP |
2765 | case OFPRAW_NXST_FLOW_REQUEST: |
2766 | return ofputil_decode_nxst_flow_request(fsr, &b, false); | |
2e4f5fcf | 2767 | |
982697a4 BP |
2768 | case OFPRAW_NXST_AGGREGATE_REQUEST: |
2769 | return ofputil_decode_nxst_flow_request(fsr, &b, true); | |
2e4f5fcf BP |
2770 | |
2771 | default: | |
2772 | /* Hey, the caller lied. */ | |
428b2edd | 2773 | OVS_NOT_REACHED(); |
2e4f5fcf BP |
2774 | } |
2775 | } | |
2776 | ||
2777 | /* Converts abstract flow_stats_request 'fsr' into an OFPST_FLOW, | |
4ffd1b43 | 2778 | * OFPST_AGGREGATE, NXST_FLOW, or NXST_AGGREGATE request 'oh' according to |
27527aa0 | 2779 | * 'protocol', and returns the message. */ |
2e4f5fcf | 2780 | struct ofpbuf * |
81d1ea94 | 2781 | ofputil_encode_flow_stats_request(const struct ofputil_flow_stats_request *fsr, |
27527aa0 | 2782 | enum ofputil_protocol protocol) |
2e4f5fcf BP |
2783 | { |
2784 | struct ofpbuf *msg; | |
982697a4 | 2785 | enum ofpraw raw; |
2e4f5fcf | 2786 | |
27527aa0 | 2787 | switch (protocol) { |
75fa58f8 | 2788 | case OFPUTIL_P_OF11_STD: |
2e1ae200 | 2789 | case OFPUTIL_P_OF12_OXM: |
c37c0382 | 2790 | case OFPUTIL_P_OF13_OXM: |
42dccab5 BP |
2791 | case OFPUTIL_P_OF14_OXM: |
2792 | case OFPUTIL_P_OF15_OXM: { | |
06516c65 SH |
2793 | struct ofp11_flow_stats_request *ofsr; |
2794 | ||
2795 | raw = (fsr->aggregate | |
617da9cd | 2796 | ? OFPRAW_OFPST11_AGGREGATE_REQUEST |
cfc23141 | 2797 | : OFPRAW_OFPST11_FLOW_REQUEST); |
2e1ae200 | 2798 | msg = ofpraw_alloc(raw, ofputil_protocol_to_ofp_version(protocol), |
75fa58f8 | 2799 | ofputil_match_typical_len(protocol)); |
06516c65 SH |
2800 | ofsr = ofpbuf_put_zeros(msg, sizeof *ofsr); |
2801 | ofsr->table_id = fsr->table_id; | |
2802 | ofsr->out_port = ofputil_port_to_ofp11(fsr->out_port); | |
7395c052 | 2803 | ofsr->out_group = htonl(fsr->out_group); |
06516c65 SH |
2804 | ofsr->cookie = fsr->cookie; |
2805 | ofsr->cookie_mask = fsr->cookie_mask; | |
75fa58f8 | 2806 | ofputil_put_ofp11_match(msg, &fsr->match, protocol); |
06516c65 SH |
2807 | break; |
2808 | } | |
2809 | ||
85813857 BP |
2810 | case OFPUTIL_P_OF10_STD: |
2811 | case OFPUTIL_P_OF10_STD_TID: { | |
e2b9ac44 | 2812 | struct ofp10_flow_stats_request *ofsr; |
2e4f5fcf | 2813 | |
982697a4 | 2814 | raw = (fsr->aggregate |
617da9cd | 2815 | ? OFPRAW_OFPST10_AGGREGATE_REQUEST |
cfc23141 | 2816 | : OFPRAW_OFPST10_FLOW_REQUEST); |
982697a4 BP |
2817 | msg = ofpraw_alloc(raw, OFP10_VERSION, 0); |
2818 | ofsr = ofpbuf_put_zeros(msg, sizeof *ofsr); | |
81a76618 | 2819 | ofputil_match_to_ofp10_match(&fsr->match, &ofsr->match); |
2e4f5fcf | 2820 | ofsr->table_id = fsr->table_id; |
4e022ec0 | 2821 | ofsr->out_port = htons(ofp_to_u16(fsr->out_port)); |
27527aa0 BP |
2822 | break; |
2823 | } | |
2824 | ||
85813857 BP |
2825 | case OFPUTIL_P_OF10_NXM: |
2826 | case OFPUTIL_P_OF10_NXM_TID: { | |
2e4f5fcf BP |
2827 | struct nx_flow_stats_request *nfsr; |
2828 | int match_len; | |
2829 | ||
982697a4 BP |
2830 | raw = (fsr->aggregate |
2831 | ? OFPRAW_NXST_AGGREGATE_REQUEST | |
2832 | : OFPRAW_NXST_FLOW_REQUEST); | |
06516c65 | 2833 | msg = ofpraw_alloc(raw, OFP10_VERSION, NXM_TYPICAL_LEN); |
982697a4 | 2834 | ofpbuf_put_zeros(msg, sizeof *nfsr); |
7623f4dd | 2835 | match_len = nx_put_match(msg, &fsr->match, |
e729e793 | 2836 | fsr->cookie, fsr->cookie_mask); |
2e4f5fcf | 2837 | |
6fd6ed71 | 2838 | nfsr = msg->msg; |
4e022ec0 | 2839 | nfsr->out_port = htons(ofp_to_u16(fsr->out_port)); |
2e4f5fcf BP |
2840 | nfsr->match_len = htons(match_len); |
2841 | nfsr->table_id = fsr->table_id; | |
27527aa0 BP |
2842 | break; |
2843 | } | |
2844 | ||
2845 | default: | |
428b2edd | 2846 | OVS_NOT_REACHED(); |
2e4f5fcf BP |
2847 | } |
2848 | ||
2849 | return msg; | |
2850 | } | |
d1e2cf21 | 2851 | |
4ffd1b43 | 2852 | /* Converts an OFPST_FLOW or NXST_FLOW reply in 'msg' into an abstract |
b78f6b77 | 2853 | * ofputil_flow_stats in 'fs'. |
4ffd1b43 BP |
2854 | * |
2855 | * Multiple OFPST_FLOW or NXST_FLOW replies can be packed into a single | |
2856 | * OpenFlow message. Calling this function multiple times for a single 'msg' | |
2857 | * iterates through the replies. The caller must initially leave 'msg''s layer | |
2858 | * pointers null and not modify them between calls. | |
2859 | * | |
f27f2134 BP |
2860 | * Most switches don't send the values needed to populate fs->idle_age and |
2861 | * fs->hard_age, so those members will usually be set to 0. If the switch from | |
2862 | * which 'msg' originated is known to implement NXT_FLOW_AGE, then pass | |
2863 | * 'flow_age_extension' as true so that the contents of 'msg' determine the | |
2864 | * 'idle_age' and 'hard_age' members in 'fs'. | |
2865 | * | |
f25d0cf3 BP |
2866 | * Uses 'ofpacts' to store the abstract OFPACT_* version of the flow stats |
2867 | * reply's actions. The caller must initialize 'ofpacts' and retains ownership | |
2868 | * of it. 'fs->ofpacts' will point into the 'ofpacts' buffer. | |
2869 | * | |
4ffd1b43 BP |
2870 | * Returns 0 if successful, EOF if no replies were left in this 'msg', |
2871 | * otherwise a positive errno value. */ | |
2872 | int | |
2873 | ofputil_decode_flow_stats_reply(struct ofputil_flow_stats *fs, | |
f27f2134 | 2874 | struct ofpbuf *msg, |
f25d0cf3 BP |
2875 | bool flow_age_extension, |
2876 | struct ofpbuf *ofpacts) | |
4ffd1b43 | 2877 | { |
0fb88c18 | 2878 | const struct ofp_header *oh; |
8f2cded4 | 2879 | size_t instructions_len; |
982697a4 BP |
2880 | enum ofperr error; |
2881 | enum ofpraw raw; | |
4ffd1b43 | 2882 | |
6fd6ed71 | 2883 | error = (msg->header ? ofpraw_decode(&raw, msg->header) |
982697a4 BP |
2884 | : ofpraw_pull(&raw, msg)); |
2885 | if (error) { | |
2886 | return error; | |
4ffd1b43 | 2887 | } |
6fd6ed71 | 2888 | oh = msg->header; |
4ffd1b43 | 2889 | |
6fd6ed71 | 2890 | if (!msg->size) { |
4ffd1b43 | 2891 | return EOF; |
2e1ae200 JR |
2892 | } else if (raw == OFPRAW_OFPST11_FLOW_REPLY |
2893 | || raw == OFPRAW_OFPST13_FLOW_REPLY) { | |
6ec5f0c5 SH |
2894 | const struct ofp11_flow_stats *ofs; |
2895 | size_t length; | |
2896 | uint16_t padded_match_len; | |
2897 | ||
2898 | ofs = ofpbuf_try_pull(msg, sizeof *ofs); | |
2899 | if (!ofs) { | |
437d0d22 | 2900 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply has %"PRIu32" leftover " |
6fd6ed71 | 2901 | "bytes at end", msg->size); |
6ec5f0c5 SH |
2902 | return EINVAL; |
2903 | } | |
2904 | ||
2905 | length = ntohs(ofs->length); | |
2906 | if (length < sizeof *ofs) { | |
2907 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply claims invalid " | |
34582733 | 2908 | "length %"PRIuSIZE, length); |
6ec5f0c5 SH |
2909 | return EINVAL; |
2910 | } | |
2911 | ||
81a76618 | 2912 | if (ofputil_pull_ofp11_match(msg, &fs->match, &padded_match_len)) { |
6ec5f0c5 SH |
2913 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply bad match"); |
2914 | return EINVAL; | |
2915 | } | |
8f2cded4 | 2916 | instructions_len = length - sizeof *ofs - padded_match_len; |
6ec5f0c5 | 2917 | |
81a76618 | 2918 | fs->priority = ntohs(ofs->priority); |
6ec5f0c5 SH |
2919 | fs->table_id = ofs->table_id; |
2920 | fs->duration_sec = ntohl(ofs->duration_sec); | |
2921 | fs->duration_nsec = ntohl(ofs->duration_nsec); | |
2922 | fs->idle_timeout = ntohs(ofs->idle_timeout); | |
2923 | fs->hard_timeout = ntohs(ofs->hard_timeout); | |
ca26eb44 RB |
2924 | if (oh->version >= OFP14_VERSION) { |
2925 | fs->importance = ntohs(ofs->importance); | |
2926 | } else { | |
2927 | fs->importance = 0; | |
2928 | } | |
0fb88c18 BP |
2929 | if (raw == OFPRAW_OFPST13_FLOW_REPLY) { |
2930 | error = ofputil_decode_flow_mod_flags(ofs->flags, -1, oh->version, | |
2931 | &fs->flags); | |
2932 | if (error) { | |
2933 | return error; | |
2934 | } | |
2935 | } else { | |
2936 | fs->flags = 0; | |
2937 | } | |
6ec5f0c5 SH |
2938 | fs->idle_age = -1; |
2939 | fs->hard_age = -1; | |
2940 | fs->cookie = ofs->cookie; | |
2941 | fs->packet_count = ntohll(ofs->packet_count); | |
2942 | fs->byte_count = ntohll(ofs->byte_count); | |
cfc23141 | 2943 | } else if (raw == OFPRAW_OFPST10_FLOW_REPLY) { |
e2b9ac44 | 2944 | const struct ofp10_flow_stats *ofs; |
4ffd1b43 BP |
2945 | size_t length; |
2946 | ||
2947 | ofs = ofpbuf_try_pull(msg, sizeof *ofs); | |
2948 | if (!ofs) { | |
437d0d22 | 2949 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply has %"PRIu32" leftover " |
6fd6ed71 | 2950 | "bytes at end", msg->size); |
4ffd1b43 BP |
2951 | return EINVAL; |
2952 | } | |
2953 | ||
2954 | length = ntohs(ofs->length); | |
2955 | if (length < sizeof *ofs) { | |
2956 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply claims invalid " | |
34582733 | 2957 | "length %"PRIuSIZE, length); |
4ffd1b43 BP |
2958 | return EINVAL; |
2959 | } | |
8f2cded4 | 2960 | instructions_len = length - sizeof *ofs; |
4ffd1b43 BP |
2961 | |
2962 | fs->cookie = get_32aligned_be64(&ofs->cookie); | |
81a76618 BP |
2963 | ofputil_match_from_ofp10_match(&ofs->match, &fs->match); |
2964 | fs->priority = ntohs(ofs->priority); | |
4ffd1b43 BP |
2965 | fs->table_id = ofs->table_id; |
2966 | fs->duration_sec = ntohl(ofs->duration_sec); | |
2967 | fs->duration_nsec = ntohl(ofs->duration_nsec); | |
2968 | fs->idle_timeout = ntohs(ofs->idle_timeout); | |
2969 | fs->hard_timeout = ntohs(ofs->hard_timeout); | |
ca26eb44 | 2970 | fs->importance = 0; |
f27f2134 BP |
2971 | fs->idle_age = -1; |
2972 | fs->hard_age = -1; | |
4ffd1b43 BP |
2973 | fs->packet_count = ntohll(get_32aligned_be64(&ofs->packet_count)); |
2974 | fs->byte_count = ntohll(get_32aligned_be64(&ofs->byte_count)); | |
2e1ae200 | 2975 | fs->flags = 0; |
982697a4 | 2976 | } else if (raw == OFPRAW_NXST_FLOW_REPLY) { |
4ffd1b43 | 2977 | const struct nx_flow_stats *nfs; |
8f2cded4 | 2978 | size_t match_len, length; |
4ffd1b43 BP |
2979 | |
2980 | nfs = ofpbuf_try_pull(msg, sizeof *nfs); | |
2981 | if (!nfs) { | |
437d0d22 | 2982 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW reply has %"PRIu32" leftover " |
6fd6ed71 | 2983 | "bytes at end", msg->size); |
4ffd1b43 BP |
2984 | return EINVAL; |
2985 | } | |
2986 | ||
2987 | length = ntohs(nfs->length); | |
2988 | match_len = ntohs(nfs->match_len); | |
2989 | if (length < sizeof *nfs + ROUND_UP(match_len, 8)) { | |
34582733 AS |
2990 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW reply with match_len=%"PRIuSIZE" " |
2991 | "claims invalid length %"PRIuSIZE, match_len, length); | |
4ffd1b43 BP |
2992 | return EINVAL; |
2993 | } | |
81a76618 | 2994 | if (nx_pull_match(msg, match_len, &fs->match, NULL, NULL)) { |
4ffd1b43 BP |
2995 | return EINVAL; |
2996 | } | |
8f2cded4 | 2997 | instructions_len = length - sizeof *nfs - ROUND_UP(match_len, 8); |
4ffd1b43 BP |
2998 | |
2999 | fs->cookie = nfs->cookie; | |
3000 | fs->table_id = nfs->table_id; | |
3001 | fs->duration_sec = ntohl(nfs->duration_sec); | |
3002 | fs->duration_nsec = ntohl(nfs->duration_nsec); | |
81a76618 | 3003 | fs->priority = ntohs(nfs->priority); |
4ffd1b43 BP |
3004 | fs->idle_timeout = ntohs(nfs->idle_timeout); |
3005 | fs->hard_timeout = ntohs(nfs->hard_timeout); | |
ca26eb44 | 3006 | fs->importance = 0; |
f27f2134 BP |
3007 | fs->idle_age = -1; |
3008 | fs->hard_age = -1; | |
3009 | if (flow_age_extension) { | |
3010 | if (nfs->idle_age) { | |
3011 | fs->idle_age = ntohs(nfs->idle_age) - 1; | |
3012 | } | |
3013 | if (nfs->hard_age) { | |
3014 | fs->hard_age = ntohs(nfs->hard_age) - 1; | |
3015 | } | |
3016 | } | |
4ffd1b43 BP |
3017 | fs->packet_count = ntohll(nfs->packet_count); |
3018 | fs->byte_count = ntohll(nfs->byte_count); | |
2e1ae200 | 3019 | fs->flags = 0; |
4ffd1b43 | 3020 | } else { |
428b2edd | 3021 | OVS_NOT_REACHED(); |
4ffd1b43 BP |
3022 | } |
3023 | ||
8f2cded4 BP |
3024 | if (ofpacts_pull_openflow_instructions(msg, instructions_len, oh->version, |
3025 | ofpacts)) { | |
3026 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply bad instructions"); | |
3027 | return EINVAL; | |
3028 | } | |
6fd6ed71 PS |
3029 | fs->ofpacts = ofpacts->data; |
3030 | fs->ofpacts_len = ofpacts->size; | |
f25d0cf3 | 3031 | |
4ffd1b43 BP |
3032 | return 0; |
3033 | } | |
3034 | ||
5e9d0469 BP |
3035 | /* Returns 'count' unchanged except that UINT64_MAX becomes 0. |
3036 | * | |
3037 | * We use this in situations where OVS internally uses UINT64_MAX to mean | |
3038 | * "value unknown" but OpenFlow 1.0 does not define any unknown value. */ | |
3039 | static uint64_t | |
3040 | unknown_to_zero(uint64_t count) | |
3041 | { | |
3042 | return count != UINT64_MAX ? count : 0; | |
3043 | } | |
3044 | ||
349adfb2 BP |
3045 | /* Appends an OFPST_FLOW or NXST_FLOW reply that contains the data in 'fs' to |
3046 | * those already present in the list of ofpbufs in 'replies'. 'replies' should | |
7395c052 | 3047 | * have been initialized with ofpmp_init(). */ |
349adfb2 BP |
3048 | void |
3049 | ofputil_append_flow_stats_reply(const struct ofputil_flow_stats *fs, | |
ca6ba700 | 3050 | struct ovs_list *replies) |
349adfb2 | 3051 | { |
f25d0cf3 | 3052 | struct ofpbuf *reply = ofpbuf_from_list(list_back(replies)); |
6fd6ed71 | 3053 | size_t start_ofs = reply->size; |
e28ac5cf BP |
3054 | enum ofp_version version = ofpmp_version(replies); |
3055 | enum ofpraw raw = ofpmp_decode_raw(replies); | |
349adfb2 | 3056 | |
2e1ae200 | 3057 | if (raw == OFPRAW_OFPST11_FLOW_REPLY || raw == OFPRAW_OFPST13_FLOW_REPLY) { |
22a86f18 SH |
3058 | struct ofp11_flow_stats *ofs; |
3059 | ||
3060 | ofpbuf_put_uninit(reply, sizeof *ofs); | |
9d84066c | 3061 | oxm_put_match(reply, &fs->match, version); |
e3f8f887 JR |
3062 | ofpacts_put_openflow_instructions(fs->ofpacts, fs->ofpacts_len, reply, |
3063 | version); | |
22a86f18 SH |
3064 | |
3065 | ofs = ofpbuf_at_assert(reply, start_ofs, sizeof *ofs); | |
6fd6ed71 | 3066 | ofs->length = htons(reply->size - start_ofs); |
22a86f18 SH |
3067 | ofs->table_id = fs->table_id; |
3068 | ofs->pad = 0; | |
3069 | ofs->duration_sec = htonl(fs->duration_sec); | |
3070 | ofs->duration_nsec = htonl(fs->duration_nsec); | |
81a76618 | 3071 | ofs->priority = htons(fs->priority); |
22a86f18 SH |
3072 | ofs->idle_timeout = htons(fs->idle_timeout); |
3073 | ofs->hard_timeout = htons(fs->hard_timeout); | |
ca26eb44 RB |
3074 | if (version >= OFP14_VERSION) { |
3075 | ofs->importance = htons(fs->importance); | |
3076 | } else { | |
3077 | ofs->importance = 0; | |
3078 | } | |
0fb88c18 | 3079 | if (raw == OFPRAW_OFPST13_FLOW_REPLY) { |
e3f8f887 | 3080 | ofs->flags = ofputil_encode_flow_mod_flags(fs->flags, version); |
0fb88c18 BP |
3081 | } else { |
3082 | ofs->flags = 0; | |
3083 | } | |
22a86f18 SH |
3084 | memset(ofs->pad2, 0, sizeof ofs->pad2); |
3085 | ofs->cookie = fs->cookie; | |
3086 | ofs->packet_count = htonll(unknown_to_zero(fs->packet_count)); | |
3087 | ofs->byte_count = htonll(unknown_to_zero(fs->byte_count)); | |
3088 | } else if (raw == OFPRAW_OFPST10_FLOW_REPLY) { | |
e2b9ac44 | 3089 | struct ofp10_flow_stats *ofs; |
349adfb2 | 3090 | |
1a59dc2c | 3091 | ofpbuf_put_uninit(reply, sizeof *ofs); |
e3f8f887 JR |
3092 | ofpacts_put_openflow_actions(fs->ofpacts, fs->ofpacts_len, reply, |
3093 | version); | |
1a59dc2c | 3094 | ofs = ofpbuf_at_assert(reply, start_ofs, sizeof *ofs); |
6fd6ed71 | 3095 | ofs->length = htons(reply->size - start_ofs); |
349adfb2 BP |
3096 | ofs->table_id = fs->table_id; |
3097 | ofs->pad = 0; | |
81a76618 | 3098 | ofputil_match_to_ofp10_match(&fs->match, &ofs->match); |
349adfb2 BP |
3099 | ofs->duration_sec = htonl(fs->duration_sec); |
3100 | ofs->duration_nsec = htonl(fs->duration_nsec); | |
81a76618 | 3101 | ofs->priority = htons(fs->priority); |
349adfb2 BP |
3102 | ofs->idle_timeout = htons(fs->idle_timeout); |
3103 | ofs->hard_timeout = htons(fs->hard_timeout); | |
3104 | memset(ofs->pad2, 0, sizeof ofs->pad2); | |
3105 | put_32aligned_be64(&ofs->cookie, fs->cookie); | |
5e9d0469 BP |
3106 | put_32aligned_be64(&ofs->packet_count, |
3107 | htonll(unknown_to_zero(fs->packet_count))); | |
3108 | put_32aligned_be64(&ofs->byte_count, | |
3109 | htonll(unknown_to_zero(fs->byte_count))); | |
982697a4 | 3110 | } else if (raw == OFPRAW_NXST_FLOW_REPLY) { |
349adfb2 | 3111 | struct nx_flow_stats *nfs; |
1a59dc2c | 3112 | int match_len; |
349adfb2 | 3113 | |
1a59dc2c | 3114 | ofpbuf_put_uninit(reply, sizeof *nfs); |
81a76618 | 3115 | match_len = nx_put_match(reply, &fs->match, 0, 0); |
e3f8f887 JR |
3116 | ofpacts_put_openflow_actions(fs->ofpacts, fs->ofpacts_len, reply, |
3117 | version); | |
1a59dc2c | 3118 | nfs = ofpbuf_at_assert(reply, start_ofs, sizeof *nfs); |
6fd6ed71 | 3119 | nfs->length = htons(reply->size - start_ofs); |
349adfb2 BP |
3120 | nfs->table_id = fs->table_id; |
3121 | nfs->pad = 0; | |
3122 | nfs->duration_sec = htonl(fs->duration_sec); | |
3123 | nfs->duration_nsec = htonl(fs->duration_nsec); | |
81a76618 | 3124 | nfs->priority = htons(fs->priority); |
349adfb2 BP |
3125 | nfs->idle_timeout = htons(fs->idle_timeout); |
3126 | nfs->hard_timeout = htons(fs->hard_timeout); | |
f27f2134 BP |
3127 | nfs->idle_age = htons(fs->idle_age < 0 ? 0 |
3128 | : fs->idle_age < UINT16_MAX ? fs->idle_age + 1 | |
3129 | : UINT16_MAX); | |
3130 | nfs->hard_age = htons(fs->hard_age < 0 ? 0 | |
3131 | : fs->hard_age < UINT16_MAX ? fs->hard_age + 1 | |
3132 | : UINT16_MAX); | |
1a59dc2c | 3133 | nfs->match_len = htons(match_len); |
349adfb2 BP |
3134 | nfs->cookie = fs->cookie; |
3135 | nfs->packet_count = htonll(fs->packet_count); | |
3136 | nfs->byte_count = htonll(fs->byte_count); | |
349adfb2 | 3137 | } else { |
428b2edd | 3138 | OVS_NOT_REACHED(); |
349adfb2 | 3139 | } |
f25d0cf3 | 3140 | |
982697a4 | 3141 | ofpmp_postappend(replies, start_ofs); |
349adfb2 BP |
3142 | } |
3143 | ||
76c93b22 | 3144 | /* Converts abstract ofputil_aggregate_stats 'stats' into an OFPST_AGGREGATE or |
a814ba0f | 3145 | * NXST_AGGREGATE reply matching 'request', and returns the message. */ |
76c93b22 BP |
3146 | struct ofpbuf * |
3147 | ofputil_encode_aggregate_stats_reply( | |
3148 | const struct ofputil_aggregate_stats *stats, | |
982697a4 | 3149 | const struct ofp_header *request) |
76c93b22 | 3150 | { |
a814ba0f BP |
3151 | struct ofp_aggregate_stats_reply *asr; |
3152 | uint64_t packet_count; | |
3153 | uint64_t byte_count; | |
76c93b22 | 3154 | struct ofpbuf *msg; |
982697a4 | 3155 | enum ofpraw raw; |
76c93b22 | 3156 | |
982697a4 | 3157 | ofpraw_decode(&raw, request); |
617da9cd | 3158 | if (raw == OFPRAW_OFPST10_AGGREGATE_REQUEST) { |
a814ba0f BP |
3159 | packet_count = unknown_to_zero(stats->packet_count); |
3160 | byte_count = unknown_to_zero(stats->byte_count); | |
76c93b22 | 3161 | } else { |
a814ba0f BP |
3162 | packet_count = stats->packet_count; |
3163 | byte_count = stats->byte_count; | |
76c93b22 BP |
3164 | } |
3165 | ||
a814ba0f BP |
3166 | msg = ofpraw_alloc_stats_reply(request, 0); |
3167 | asr = ofpbuf_put_zeros(msg, sizeof *asr); | |
3168 | put_32aligned_be64(&asr->packet_count, htonll(packet_count)); | |
3169 | put_32aligned_be64(&asr->byte_count, htonll(byte_count)); | |
3170 | asr->flow_count = htonl(stats->flow_count); | |
3171 | ||
76c93b22 BP |
3172 | return msg; |
3173 | } | |
3174 | ||
982697a4 BP |
3175 | enum ofperr |
3176 | ofputil_decode_aggregate_stats_reply(struct ofputil_aggregate_stats *stats, | |
3177 | const struct ofp_header *reply) | |
3178 | { | |
a814ba0f | 3179 | struct ofp_aggregate_stats_reply *asr; |
982697a4 | 3180 | struct ofpbuf msg; |
982697a4 BP |
3181 | |
3182 | ofpbuf_use_const(&msg, reply, ntohs(reply->length)); | |
a814ba0f BP |
3183 | ofpraw_pull_assert(&msg); |
3184 | ||
6fd6ed71 | 3185 | asr = msg.msg; |
a814ba0f BP |
3186 | stats->packet_count = ntohll(get_32aligned_be64(&asr->packet_count)); |
3187 | stats->byte_count = ntohll(get_32aligned_be64(&asr->byte_count)); | |
3188 | stats->flow_count = ntohl(asr->flow_count); | |
982697a4 BP |
3189 | |
3190 | return 0; | |
3191 | } | |
3192 | ||
b78f6b77 BP |
3193 | /* Converts an OFPT_FLOW_REMOVED or NXT_FLOW_REMOVED message 'oh' into an |
3194 | * abstract ofputil_flow_removed in 'fr'. Returns 0 if successful, otherwise | |
3195 | * an OpenFlow error code. */ | |
90bf1e07 | 3196 | enum ofperr |
9b045a0c | 3197 | ofputil_decode_flow_removed(struct ofputil_flow_removed *fr, |
b78f6b77 | 3198 | const struct ofp_header *oh) |
9b045a0c | 3199 | { |
982697a4 BP |
3200 | enum ofpraw raw; |
3201 | struct ofpbuf b; | |
9b045a0c | 3202 | |
982697a4 BP |
3203 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
3204 | raw = ofpraw_pull_assert(&b); | |
eefbf181 SH |
3205 | if (raw == OFPRAW_OFPT11_FLOW_REMOVED) { |
3206 | const struct ofp12_flow_removed *ofr; | |
3207 | enum ofperr error; | |
3208 | ||
3209 | ofr = ofpbuf_pull(&b, sizeof *ofr); | |
3210 | ||
81a76618 | 3211 | error = ofputil_pull_ofp11_match(&b, &fr->match, NULL); |
eefbf181 SH |
3212 | if (error) { |
3213 | return error; | |
3214 | } | |
3215 | ||
81a76618 | 3216 | fr->priority = ntohs(ofr->priority); |
eefbf181 SH |
3217 | fr->cookie = ofr->cookie; |
3218 | fr->reason = ofr->reason; | |
95216219 | 3219 | fr->table_id = ofr->table_id; |
eefbf181 SH |
3220 | fr->duration_sec = ntohl(ofr->duration_sec); |
3221 | fr->duration_nsec = ntohl(ofr->duration_nsec); | |
3222 | fr->idle_timeout = ntohs(ofr->idle_timeout); | |
3223 | fr->hard_timeout = ntohs(ofr->hard_timeout); | |
3224 | fr->packet_count = ntohll(ofr->packet_count); | |
3225 | fr->byte_count = ntohll(ofr->byte_count); | |
3226 | } else if (raw == OFPRAW_OFPT10_FLOW_REMOVED) { | |
31a9e63f | 3227 | const struct ofp10_flow_removed *ofr; |
9b045a0c | 3228 | |
982697a4 BP |
3229 | ofr = ofpbuf_pull(&b, sizeof *ofr); |
3230 | ||
81a76618 BP |
3231 | ofputil_match_from_ofp10_match(&ofr->match, &fr->match); |
3232 | fr->priority = ntohs(ofr->priority); | |
9b045a0c BP |
3233 | fr->cookie = ofr->cookie; |
3234 | fr->reason = ofr->reason; | |
95216219 | 3235 | fr->table_id = 255; |
9b045a0c BP |
3236 | fr->duration_sec = ntohl(ofr->duration_sec); |
3237 | fr->duration_nsec = ntohl(ofr->duration_nsec); | |
3238 | fr->idle_timeout = ntohs(ofr->idle_timeout); | |
fa2bad0f | 3239 | fr->hard_timeout = 0; |
9b045a0c BP |
3240 | fr->packet_count = ntohll(ofr->packet_count); |
3241 | fr->byte_count = ntohll(ofr->byte_count); | |
982697a4 | 3242 | } else if (raw == OFPRAW_NXT_FLOW_REMOVED) { |
9b045a0c | 3243 | struct nx_flow_removed *nfr; |
c2725b60 | 3244 | enum ofperr error; |
9b045a0c | 3245 | |
9b045a0c | 3246 | nfr = ofpbuf_pull(&b, sizeof *nfr); |
81a76618 BP |
3247 | error = nx_pull_match(&b, ntohs(nfr->match_len), &fr->match, |
3248 | NULL, NULL); | |
9b045a0c BP |
3249 | if (error) { |
3250 | return error; | |
3251 | } | |
6fd6ed71 | 3252 | if (b.size) { |
90bf1e07 | 3253 | return OFPERR_OFPBRC_BAD_LEN; |
9b045a0c BP |
3254 | } |
3255 | ||
81a76618 | 3256 | fr->priority = ntohs(nfr->priority); |
9b045a0c BP |
3257 | fr->cookie = nfr->cookie; |
3258 | fr->reason = nfr->reason; | |
745bfd5e | 3259 | fr->table_id = nfr->table_id ? nfr->table_id - 1 : 255; |
9b045a0c BP |
3260 | fr->duration_sec = ntohl(nfr->duration_sec); |
3261 | fr->duration_nsec = ntohl(nfr->duration_nsec); | |
3262 | fr->idle_timeout = ntohs(nfr->idle_timeout); | |
fa2bad0f | 3263 | fr->hard_timeout = 0; |
9b045a0c BP |
3264 | fr->packet_count = ntohll(nfr->packet_count); |
3265 | fr->byte_count = ntohll(nfr->byte_count); | |
3266 | } else { | |
428b2edd | 3267 | OVS_NOT_REACHED(); |
9b045a0c BP |
3268 | } |
3269 | ||
3270 | return 0; | |
3271 | } | |
3272 | ||
588cd7b5 | 3273 | /* Converts abstract ofputil_flow_removed 'fr' into an OFPT_FLOW_REMOVED or |
27527aa0 | 3274 | * NXT_FLOW_REMOVED message 'oh' according to 'protocol', and returns the |
588cd7b5 BP |
3275 | * message. */ |
3276 | struct ofpbuf * | |
3277 | ofputil_encode_flow_removed(const struct ofputil_flow_removed *fr, | |
27527aa0 | 3278 | enum ofputil_protocol protocol) |
588cd7b5 BP |
3279 | { |
3280 | struct ofpbuf *msg; | |
fa42f4f8 SH |
3281 | enum ofp_flow_removed_reason reason = fr->reason; |
3282 | ||
3283 | if (reason == OFPRR_METER_DELETE && !(protocol & OFPUTIL_P_OF14_UP)) { | |
3284 | reason = OFPRR_DELETE; | |
3285 | } | |
588cd7b5 | 3286 | |
27527aa0 | 3287 | switch (protocol) { |
75fa58f8 | 3288 | case OFPUTIL_P_OF11_STD: |
2e1ae200 | 3289 | case OFPUTIL_P_OF12_OXM: |
c37c0382 | 3290 | case OFPUTIL_P_OF13_OXM: |
42dccab5 BP |
3291 | case OFPUTIL_P_OF14_OXM: |
3292 | case OFPUTIL_P_OF15_OXM: { | |
83974732 SH |
3293 | struct ofp12_flow_removed *ofr; |
3294 | ||
3295 | msg = ofpraw_alloc_xid(OFPRAW_OFPT11_FLOW_REMOVED, | |
3296 | ofputil_protocol_to_ofp_version(protocol), | |
75fa58f8 BP |
3297 | htonl(0), |
3298 | ofputil_match_typical_len(protocol)); | |
83974732 SH |
3299 | ofr = ofpbuf_put_zeros(msg, sizeof *ofr); |
3300 | ofr->cookie = fr->cookie; | |
81a76618 | 3301 | ofr->priority = htons(fr->priority); |
fa42f4f8 | 3302 | ofr->reason = reason; |
95216219 | 3303 | ofr->table_id = fr->table_id; |
83974732 SH |
3304 | ofr->duration_sec = htonl(fr->duration_sec); |
3305 | ofr->duration_nsec = htonl(fr->duration_nsec); | |
3306 | ofr->idle_timeout = htons(fr->idle_timeout); | |
fa2bad0f | 3307 | ofr->hard_timeout = htons(fr->hard_timeout); |
83974732 SH |
3308 | ofr->packet_count = htonll(fr->packet_count); |
3309 | ofr->byte_count = htonll(fr->byte_count); | |
75fa58f8 | 3310 | ofputil_put_ofp11_match(msg, &fr->match, protocol); |
83974732 SH |
3311 | break; |
3312 | } | |
3313 | ||
85813857 BP |
3314 | case OFPUTIL_P_OF10_STD: |
3315 | case OFPUTIL_P_OF10_STD_TID: { | |
31a9e63f | 3316 | struct ofp10_flow_removed *ofr; |
588cd7b5 | 3317 | |
982697a4 BP |
3318 | msg = ofpraw_alloc_xid(OFPRAW_OFPT10_FLOW_REMOVED, OFP10_VERSION, |
3319 | htonl(0), 0); | |
3320 | ofr = ofpbuf_put_zeros(msg, sizeof *ofr); | |
81a76618 | 3321 | ofputil_match_to_ofp10_match(&fr->match, &ofr->match); |
7fb563b9 | 3322 | ofr->cookie = fr->cookie; |
81a76618 | 3323 | ofr->priority = htons(fr->priority); |
fa42f4f8 | 3324 | ofr->reason = reason; |
588cd7b5 BP |
3325 | ofr->duration_sec = htonl(fr->duration_sec); |
3326 | ofr->duration_nsec = htonl(fr->duration_nsec); | |
3327 | ofr->idle_timeout = htons(fr->idle_timeout); | |
5e9d0469 BP |
3328 | ofr->packet_count = htonll(unknown_to_zero(fr->packet_count)); |
3329 | ofr->byte_count = htonll(unknown_to_zero(fr->byte_count)); | |
27527aa0 BP |
3330 | break; |
3331 | } | |
3332 | ||
85813857 BP |
3333 | case OFPUTIL_P_OF10_NXM: |
3334 | case OFPUTIL_P_OF10_NXM_TID: { | |
588cd7b5 BP |
3335 | struct nx_flow_removed *nfr; |
3336 | int match_len; | |
3337 | ||
982697a4 BP |
3338 | msg = ofpraw_alloc_xid(OFPRAW_NXT_FLOW_REMOVED, OFP10_VERSION, |
3339 | htonl(0), NXM_TYPICAL_LEN); | |
a3358085 | 3340 | ofpbuf_put_zeros(msg, sizeof *nfr); |
81a76618 | 3341 | match_len = nx_put_match(msg, &fr->match, 0, 0); |
588cd7b5 | 3342 | |
6fd6ed71 | 3343 | nfr = msg->msg; |
588cd7b5 | 3344 | nfr->cookie = fr->cookie; |
81a76618 | 3345 | nfr->priority = htons(fr->priority); |
fa42f4f8 | 3346 | nfr->reason = reason; |
745bfd5e | 3347 | nfr->table_id = fr->table_id + 1; |
588cd7b5 BP |
3348 | nfr->duration_sec = htonl(fr->duration_sec); |
3349 | nfr->duration_nsec = htonl(fr->duration_nsec); | |
3350 | nfr->idle_timeout = htons(fr->idle_timeout); | |
3351 | nfr->match_len = htons(match_len); | |
3352 | nfr->packet_count = htonll(fr->packet_count); | |
3353 | nfr->byte_count = htonll(fr->byte_count); | |
27527aa0 BP |
3354 | break; |
3355 | } | |
3356 | ||
3357 | default: | |
428b2edd | 3358 | OVS_NOT_REACHED(); |
588cd7b5 BP |
3359 | } |
3360 | ||
3361 | return msg; | |
3362 | } | |
3363 | ||
f7cc6bd8 | 3364 | enum ofperr |
65120a8a EJ |
3365 | ofputil_decode_packet_in(struct ofputil_packet_in *pin, |
3366 | const struct ofp_header *oh) | |
3367 | { | |
982697a4 BP |
3368 | enum ofpraw raw; |
3369 | struct ofpbuf b; | |
65120a8a | 3370 | |
65120a8a | 3371 | memset(pin, 0, sizeof *pin); |
d4fa4e79 | 3372 | pin->cookie = OVS_BE64_MAX; |
65120a8a | 3373 | |
982697a4 BP |
3374 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
3375 | raw = ofpraw_pull_assert(&b); | |
2e1ae200 JR |
3376 | if (raw == OFPRAW_OFPT13_PACKET_IN || raw == OFPRAW_OFPT12_PACKET_IN) { |
3377 | const struct ofp13_packet_in *opi; | |
7cfb9651 | 3378 | int error; |
2e1ae200 JR |
3379 | size_t packet_in_size; |
3380 | ||
3381 | if (raw == OFPRAW_OFPT12_PACKET_IN) { | |
3382 | packet_in_size = sizeof (struct ofp12_packet_in); | |
3383 | } else { | |
3384 | packet_in_size = sizeof (struct ofp13_packet_in); | |
3385 | } | |
7cfb9651 | 3386 | |
2e1ae200 | 3387 | opi = ofpbuf_pull(&b, packet_in_size); |
50dcbd8e | 3388 | error = oxm_pull_match_loose(&b, &pin->flow_metadata); |
7cfb9651 SH |
3389 | if (error) { |
3390 | return error; | |
3391 | } | |
3392 | ||
3393 | if (!ofpbuf_try_pull(&b, 2)) { | |
3394 | return OFPERR_OFPBRC_BAD_LEN; | |
3395 | } | |
3396 | ||
2e1ae200 JR |
3397 | pin->reason = opi->pi.reason; |
3398 | pin->table_id = opi->pi.table_id; | |
3399 | pin->buffer_id = ntohl(opi->pi.buffer_id); | |
3400 | pin->total_len = ntohs(opi->pi.total_len); | |
7cfb9651 | 3401 | |
2e1ae200 JR |
3402 | if (raw == OFPRAW_OFPT13_PACKET_IN) { |
3403 | pin->cookie = opi->cookie; | |
3404 | } | |
7cfb9651 | 3405 | |
50dcbd8e JG |
3406 | pin->packet = b.data; |
3407 | pin->packet_len = b.size; | |
7cfb9651 | 3408 | } else if (raw == OFPRAW_OFPT10_PACKET_IN) { |
31a9e63f | 3409 | const struct ofp10_packet_in *opi; |
982697a4 | 3410 | |
31a9e63f | 3411 | opi = ofpbuf_pull(&b, offsetof(struct ofp10_packet_in, data)); |
65120a8a EJ |
3412 | |
3413 | pin->packet = opi->data; | |
6fd6ed71 | 3414 | pin->packet_len = b.size; |
65120a8a | 3415 | |
50dcbd8e JG |
3416 | match_init_catchall(&pin->flow_metadata); |
3417 | match_set_in_port(&pin->flow_metadata, u16_to_ofp(ntohs(opi->in_port))); | |
65120a8a EJ |
3418 | pin->reason = opi->reason; |
3419 | pin->buffer_id = ntohl(opi->buffer_id); | |
3420 | pin->total_len = ntohs(opi->total_len); | |
4d197ebb BP |
3421 | } else if (raw == OFPRAW_OFPT11_PACKET_IN) { |
3422 | const struct ofp11_packet_in *opi; | |
50dcbd8e | 3423 | ofp_port_t in_port; |
4d197ebb BP |
3424 | enum ofperr error; |
3425 | ||
3426 | opi = ofpbuf_pull(&b, sizeof *opi); | |
3427 | ||
6fd6ed71 PS |
3428 | pin->packet = b.data; |
3429 | pin->packet_len = b.size; | |
4d197ebb BP |
3430 | |
3431 | pin->buffer_id = ntohl(opi->buffer_id); | |
50dcbd8e | 3432 | error = ofputil_port_from_ofp11(opi->in_port, &in_port); |
4d197ebb BP |
3433 | if (error) { |
3434 | return error; | |
3435 | } | |
50dcbd8e JG |
3436 | match_init_catchall(&pin->flow_metadata); |
3437 | match_set_in_port(&pin->flow_metadata, in_port); | |
4d197ebb BP |
3438 | pin->total_len = ntohs(opi->total_len); |
3439 | pin->reason = opi->reason; | |
3440 | pin->table_id = opi->table_id; | |
982697a4 | 3441 | } else if (raw == OFPRAW_NXT_PACKET_IN) { |
73dbf4ab | 3442 | const struct nx_packet_in *npi; |
54834960 EJ |
3443 | int error; |
3444 | ||
54834960 | 3445 | npi = ofpbuf_pull(&b, sizeof *npi); |
50dcbd8e JG |
3446 | error = nx_pull_match_loose(&b, ntohs(npi->match_len), |
3447 | &pin->flow_metadata, NULL, NULL); | |
54834960 EJ |
3448 | if (error) { |
3449 | return error; | |
3450 | } | |
3451 | ||
3452 | if (!ofpbuf_try_pull(&b, 2)) { | |
90bf1e07 | 3453 | return OFPERR_OFPBRC_BAD_LEN; |
54834960 EJ |
3454 | } |
3455 | ||
54834960 EJ |
3456 | pin->reason = npi->reason; |
3457 | pin->table_id = npi->table_id; | |
3458 | pin->cookie = npi->cookie; | |
3459 | ||
54834960 EJ |
3460 | pin->buffer_id = ntohl(npi->buffer_id); |
3461 | pin->total_len = ntohs(npi->total_len); | |
7cfb9651 | 3462 | |
50dcbd8e JG |
3463 | pin->packet = b.data; |
3464 | pin->packet_len = b.size; | |
65120a8a | 3465 | } else { |
428b2edd | 3466 | OVS_NOT_REACHED(); |
65120a8a EJ |
3467 | } |
3468 | ||
3469 | return 0; | |
3470 | } | |
3471 | ||
0f83fea0 BP |
3472 | static struct ofpbuf * |
3473 | ofputil_encode_ofp10_packet_in(const struct ofputil_packet_in *pin) | |
3474 | { | |
3475 | struct ofp10_packet_in *opi; | |
3476 | struct ofpbuf *packet; | |
3477 | ||
3478 | packet = ofpraw_alloc_xid(OFPRAW_OFPT10_PACKET_IN, OFP10_VERSION, | |
3479 | htonl(0), pin->packet_len); | |
3480 | opi = ofpbuf_put_zeros(packet, offsetof(struct ofp10_packet_in, data)); | |
3481 | opi->total_len = htons(pin->total_len); | |
50dcbd8e | 3482 | opi->in_port = htons(ofp_to_u16(pin->flow_metadata.flow.in_port.ofp_port)); |
0f83fea0 BP |
3483 | opi->reason = pin->reason; |
3484 | opi->buffer_id = htonl(pin->buffer_id); | |
3485 | ||
3486 | ofpbuf_put(packet, pin->packet, pin->packet_len); | |
3487 | ||
3488 | return packet; | |
3489 | } | |
3490 | ||
3491 | static struct ofpbuf * | |
3492 | ofputil_encode_nx_packet_in(const struct ofputil_packet_in *pin) | |
3493 | { | |
3494 | struct nx_packet_in *npi; | |
3495 | struct ofpbuf *packet; | |
0f83fea0 BP |
3496 | size_t match_len; |
3497 | ||
0f83fea0 BP |
3498 | /* The final argument is just an estimate of the space required. */ |
3499 | packet = ofpraw_alloc_xid(OFPRAW_NXT_PACKET_IN, OFP10_VERSION, | |
50dcbd8e | 3500 | htonl(0), NXM_TYPICAL_LEN + 2 + pin->packet_len); |
0f83fea0 | 3501 | ofpbuf_put_zeros(packet, sizeof *npi); |
50dcbd8e | 3502 | match_len = nx_put_match(packet, &pin->flow_metadata, 0, 0); |
0f83fea0 BP |
3503 | ofpbuf_put_zeros(packet, 2); |
3504 | ofpbuf_put(packet, pin->packet, pin->packet_len); | |
3505 | ||
6fd6ed71 | 3506 | npi = packet->msg; |
0f83fea0 BP |
3507 | npi->buffer_id = htonl(pin->buffer_id); |
3508 | npi->total_len = htons(pin->total_len); | |
3509 | npi->reason = pin->reason; | |
3510 | npi->table_id = pin->table_id; | |
3511 | npi->cookie = pin->cookie; | |
3512 | npi->match_len = htons(match_len); | |
3513 | ||
3514 | return packet; | |
3515 | } | |
3516 | ||
4d197ebb BP |
3517 | static struct ofpbuf * |
3518 | ofputil_encode_ofp11_packet_in(const struct ofputil_packet_in *pin) | |
3519 | { | |
3520 | struct ofp11_packet_in *opi; | |
3521 | struct ofpbuf *packet; | |
3522 | ||
3523 | packet = ofpraw_alloc_xid(OFPRAW_OFPT11_PACKET_IN, OFP11_VERSION, | |
3524 | htonl(0), pin->packet_len); | |
3525 | opi = ofpbuf_put_zeros(packet, sizeof *opi); | |
3526 | opi->buffer_id = htonl(pin->buffer_id); | |
50dcbd8e | 3527 | opi->in_port = ofputil_port_to_ofp11(pin->flow_metadata.flow.in_port.ofp_port); |
4d197ebb BP |
3528 | opi->in_phy_port = opi->in_port; |
3529 | opi->total_len = htons(pin->total_len); | |
3530 | opi->reason = pin->reason; | |
3531 | opi->table_id = pin->table_id; | |
3532 | ||
3533 | ofpbuf_put(packet, pin->packet, pin->packet_len); | |
3534 | ||
3535 | return packet; | |
3536 | } | |
3537 | ||
0f83fea0 BP |
3538 | static struct ofpbuf * |
3539 | ofputil_encode_ofp12_packet_in(const struct ofputil_packet_in *pin, | |
3540 | enum ofputil_protocol protocol) | |
3541 | { | |
3542 | struct ofp13_packet_in *opi; | |
0f83fea0 BP |
3543 | enum ofpraw packet_in_raw; |
3544 | enum ofp_version packet_in_version; | |
3545 | size_t packet_in_size; | |
3546 | struct ofpbuf *packet; | |
3547 | ||
3548 | if (protocol == OFPUTIL_P_OF12_OXM) { | |
3549 | packet_in_raw = OFPRAW_OFPT12_PACKET_IN; | |
3550 | packet_in_version = OFP12_VERSION; | |
3551 | packet_in_size = sizeof (struct ofp12_packet_in); | |
3552 | } else { | |
3553 | packet_in_raw = OFPRAW_OFPT13_PACKET_IN; | |
b6a3dd9c | 3554 | packet_in_version = ofputil_protocol_to_ofp_version(protocol); |
0f83fea0 BP |
3555 | packet_in_size = sizeof (struct ofp13_packet_in); |
3556 | } | |
3557 | ||
0f83fea0 BP |
3558 | /* The final argument is just an estimate of the space required. */ |
3559 | packet = ofpraw_alloc_xid(packet_in_raw, packet_in_version, | |
50dcbd8e | 3560 | htonl(0), NXM_TYPICAL_LEN + 2 + pin->packet_len); |
0f83fea0 | 3561 | ofpbuf_put_zeros(packet, packet_in_size); |
50dcbd8e JG |
3562 | oxm_put_match(packet, &pin->flow_metadata, |
3563 | ofputil_protocol_to_ofp_version(protocol)); | |
0f83fea0 BP |
3564 | ofpbuf_put_zeros(packet, 2); |
3565 | ofpbuf_put(packet, pin->packet, pin->packet_len); | |
3566 | ||
6fd6ed71 | 3567 | opi = packet->msg; |
0f83fea0 BP |
3568 | opi->pi.buffer_id = htonl(pin->buffer_id); |
3569 | opi->pi.total_len = htons(pin->total_len); | |
3570 | opi->pi.reason = pin->reason; | |
3571 | opi->pi.table_id = pin->table_id; | |
b6a3dd9c | 3572 | if (protocol != OFPUTIL_P_OF12_OXM) { |
0f83fea0 BP |
3573 | opi->cookie = pin->cookie; |
3574 | } | |
3575 | ||
3576 | return packet; | |
3577 | } | |
3578 | ||
54834960 EJ |
3579 | /* Converts abstract ofputil_packet_in 'pin' into a PACKET_IN message |
3580 | * in the format specified by 'packet_in_format'. */ | |
ebb57021 | 3581 | struct ofpbuf * |
54834960 | 3582 | ofputil_encode_packet_in(const struct ofputil_packet_in *pin, |
d94240ec | 3583 | enum ofputil_protocol protocol, |
54834960 | 3584 | enum nx_packet_in_format packet_in_format) |
ebb57021 | 3585 | { |
54834960 | 3586 | struct ofpbuf *packet; |
ebb57021 | 3587 | |
0f83fea0 BP |
3588 | switch (protocol) { |
3589 | case OFPUTIL_P_OF10_STD: | |
3590 | case OFPUTIL_P_OF10_STD_TID: | |
3591 | case OFPUTIL_P_OF10_NXM: | |
3592 | case OFPUTIL_P_OF10_NXM_TID: | |
3593 | packet = (packet_in_format == NXPIF_NXM | |
3594 | ? ofputil_encode_nx_packet_in(pin) | |
3595 | : ofputil_encode_ofp10_packet_in(pin)); | |
3596 | break; | |
2e1ae200 | 3597 | |
0f83fea0 | 3598 | case OFPUTIL_P_OF11_STD: |
4d197ebb BP |
3599 | packet = ofputil_encode_ofp11_packet_in(pin); |
3600 | break; | |
d94240ec | 3601 | |
0f83fea0 BP |
3602 | case OFPUTIL_P_OF12_OXM: |
3603 | case OFPUTIL_P_OF13_OXM: | |
c37c0382 | 3604 | case OFPUTIL_P_OF14_OXM: |
42dccab5 | 3605 | case OFPUTIL_P_OF15_OXM: |
0f83fea0 BP |
3606 | packet = ofputil_encode_ofp12_packet_in(pin, protocol); |
3607 | break; | |
3608 | ||
3609 | default: | |
428b2edd | 3610 | OVS_NOT_REACHED(); |
54834960 | 3611 | } |
54834960 | 3612 | |
0f83fea0 | 3613 | ofpmsg_update_length(packet); |
54834960 | 3614 | return packet; |
ebb57021 BP |
3615 | } |
3616 | ||
5014a89d BP |
3617 | /* Returns a string form of 'reason'. The return value is either a statically |
3618 | * allocated constant string or the 'bufsize'-byte buffer 'reasonbuf'. | |
3619 | * 'bufsize' should be at least OFPUTIL_PACKET_IN_REASON_BUFSIZE. */ | |
7c1a76a4 | 3620 | const char * |
5014a89d BP |
3621 | ofputil_packet_in_reason_to_string(enum ofp_packet_in_reason reason, |
3622 | char *reasonbuf, size_t bufsize) | |
7c1a76a4 | 3623 | { |
7c1a76a4 BP |
3624 | switch (reason) { |
3625 | case OFPR_NO_MATCH: | |
3626 | return "no_match"; | |
3627 | case OFPR_ACTION: | |
3628 | return "action"; | |
3629 | case OFPR_INVALID_TTL: | |
3630 | return "invalid_ttl"; | |
424467c6 SS |
3631 | case OFPR_ACTION_SET: |
3632 | return "action_set"; | |
3633 | case OFPR_GROUP: | |
3634 | return "group"; | |
3635 | case OFPR_PACKET_OUT: | |
3636 | return "packet_out"; | |
7c1a76a4 BP |
3637 | |
3638 | case OFPR_N_REASONS: | |
3639 | default: | |
5014a89d BP |
3640 | snprintf(reasonbuf, bufsize, "%d", (int) reason); |
3641 | return reasonbuf; | |
7c1a76a4 BP |
3642 | } |
3643 | } | |
3644 | ||
3645 | bool | |
3646 | ofputil_packet_in_reason_from_string(const char *s, | |
3647 | enum ofp_packet_in_reason *reason) | |
3648 | { | |
3649 | int i; | |
3650 | ||
3651 | for (i = 0; i < OFPR_N_REASONS; i++) { | |
5014a89d BP |
3652 | char reasonbuf[OFPUTIL_PACKET_IN_REASON_BUFSIZE]; |
3653 | const char *reason_s; | |
3654 | ||
3655 | reason_s = ofputil_packet_in_reason_to_string(i, reasonbuf, | |
3656 | sizeof reasonbuf); | |
3657 | if (!strcasecmp(s, reason_s)) { | |
7c1a76a4 BP |
3658 | *reason = i; |
3659 | return true; | |
3660 | } | |
3661 | } | |
3662 | return false; | |
3663 | } | |
3664 | ||
f25d0cf3 BP |
3665 | /* Converts an OFPT_PACKET_OUT in 'opo' into an abstract ofputil_packet_out in |
3666 | * 'po'. | |
3667 | * | |
3668 | * Uses 'ofpacts' to store the abstract OFPACT_* version of the packet out | |
3669 | * message's actions. The caller must initialize 'ofpacts' and retains | |
3670 | * ownership of it. 'po->ofpacts' will point into the 'ofpacts' buffer. | |
3671 | * | |
3672 | * Returns 0 if successful, otherwise an OFPERR_* value. */ | |
c6a93eb7 BP |
3673 | enum ofperr |
3674 | ofputil_decode_packet_out(struct ofputil_packet_out *po, | |
982697a4 | 3675 | const struct ofp_header *oh, |
f25d0cf3 | 3676 | struct ofpbuf *ofpacts) |
c6a93eb7 | 3677 | { |
982697a4 | 3678 | enum ofpraw raw; |
c6a93eb7 BP |
3679 | struct ofpbuf b; |
3680 | ||
982697a4 BP |
3681 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
3682 | raw = ofpraw_pull_assert(&b); | |
982697a4 | 3683 | |
9abca1e5 | 3684 | ofpbuf_clear(ofpacts); |
eb5ee596 SH |
3685 | if (raw == OFPRAW_OFPT11_PACKET_OUT) { |
3686 | enum ofperr error; | |
3687 | const struct ofp11_packet_out *opo = ofpbuf_pull(&b, sizeof *opo); | |
3688 | ||
3689 | po->buffer_id = ntohl(opo->buffer_id); | |
3690 | error = ofputil_port_from_ofp11(opo->in_port, &po->in_port); | |
3691 | if (error) { | |
3692 | return error; | |
3693 | } | |
3694 | ||
e3f8f887 JR |
3695 | error = ofpacts_pull_openflow_actions(&b, ntohs(opo->actions_len), |
3696 | oh->version, ofpacts); | |
eb5ee596 SH |
3697 | if (error) { |
3698 | return error; | |
3699 | } | |
eb5ee596 | 3700 | } else if (raw == OFPRAW_OFPT10_PACKET_OUT) { |
8a6bc7cd | 3701 | enum ofperr error; |
31a9e63f | 3702 | const struct ofp10_packet_out *opo = ofpbuf_pull(&b, sizeof *opo); |
8a6bc7cd SH |
3703 | |
3704 | po->buffer_id = ntohl(opo->buffer_id); | |
4e022ec0 | 3705 | po->in_port = u16_to_ofp(ntohs(opo->in_port)); |
8a6bc7cd | 3706 | |
e3f8f887 JR |
3707 | error = ofpacts_pull_openflow_actions(&b, ntohs(opo->actions_len), |
3708 | oh->version, ofpacts); | |
8a6bc7cd SH |
3709 | if (error) { |
3710 | return error; | |
3711 | } | |
3712 | } else { | |
428b2edd | 3713 | OVS_NOT_REACHED(); |
8a6bc7cd SH |
3714 | } |
3715 | ||
4e022ec0 AW |
3716 | if (ofp_to_u16(po->in_port) >= ofp_to_u16(OFPP_MAX) |
3717 | && po->in_port != OFPP_LOCAL | |
751c7785 | 3718 | && po->in_port != OFPP_NONE && po->in_port != OFPP_CONTROLLER) { |
c6a93eb7 BP |
3719 | VLOG_WARN_RL(&bad_ofmsg_rl, "packet-out has bad input port %#"PRIx16, |
3720 | po->in_port); | |
2e1bfcb6 | 3721 | return OFPERR_OFPBRC_BAD_PORT; |
c6a93eb7 BP |
3722 | } |
3723 | ||
6fd6ed71 PS |
3724 | po->ofpacts = ofpacts->data; |
3725 | po->ofpacts_len = ofpacts->size; | |
c6a93eb7 BP |
3726 | |
3727 | if (po->buffer_id == UINT32_MAX) { | |
6fd6ed71 PS |
3728 | po->packet = b.data; |
3729 | po->packet_len = b.size; | |
c6a93eb7 BP |
3730 | } else { |
3731 | po->packet = NULL; | |
3732 | po->packet_len = 0; | |
3733 | } | |
3734 | ||
3735 | return 0; | |
3736 | } | |
6c038611 BP |
3737 | \f |
3738 | /* ofputil_phy_port */ | |
3739 | ||
3740 | /* NETDEV_F_* to and from OFPPF_* and OFPPF10_*. */ | |
3741 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_HD == OFPPF_10MB_HD); /* bit 0 */ | |
3742 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_FD == OFPPF_10MB_FD); /* bit 1 */ | |
3743 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_HD == OFPPF_100MB_HD); /* bit 2 */ | |
3744 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_FD == OFPPF_100MB_FD); /* bit 3 */ | |
3745 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_HD == OFPPF_1GB_HD); /* bit 4 */ | |
3746 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_FD == OFPPF_1GB_FD); /* bit 5 */ | |
3747 | BUILD_ASSERT_DECL((int) NETDEV_F_10GB_FD == OFPPF_10GB_FD); /* bit 6 */ | |
3748 | ||
3749 | /* NETDEV_F_ bits 11...15 are OFPPF10_ bits 7...11: */ | |
9e1fd49b BP |
3750 | BUILD_ASSERT_DECL((int) NETDEV_F_COPPER == (OFPPF10_COPPER << 4)); |
3751 | BUILD_ASSERT_DECL((int) NETDEV_F_FIBER == (OFPPF10_FIBER << 4)); | |
3752 | BUILD_ASSERT_DECL((int) NETDEV_F_AUTONEG == (OFPPF10_AUTONEG << 4)); | |
3753 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE == (OFPPF10_PAUSE << 4)); | |
3754 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE_ASYM == (OFPPF10_PAUSE_ASYM << 4)); | |
6c038611 | 3755 | |
9e1fd49b BP |
3756 | static enum netdev_features |
3757 | netdev_port_features_from_ofp10(ovs_be32 ofp10_) | |
6c038611 BP |
3758 | { |
3759 | uint32_t ofp10 = ntohl(ofp10_); | |
3760 | return (ofp10 & 0x7f) | ((ofp10 & 0xf80) << 4); | |
3761 | } | |
3762 | ||
9e1fd49b BP |
3763 | static ovs_be32 |
3764 | netdev_port_features_to_ofp10(enum netdev_features features) | |
6c038611 BP |
3765 | { |
3766 | return htonl((features & 0x7f) | ((features & 0xf800) >> 4)); | |
3767 | } | |
c6a93eb7 | 3768 | |
9e1fd49b BP |
3769 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_HD == OFPPF_10MB_HD); /* bit 0 */ |
3770 | BUILD_ASSERT_DECL((int) NETDEV_F_10MB_FD == OFPPF_10MB_FD); /* bit 1 */ | |
3771 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_HD == OFPPF_100MB_HD); /* bit 2 */ | |
3772 | BUILD_ASSERT_DECL((int) NETDEV_F_100MB_FD == OFPPF_100MB_FD); /* bit 3 */ | |
3773 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_HD == OFPPF_1GB_HD); /* bit 4 */ | |
3774 | BUILD_ASSERT_DECL((int) NETDEV_F_1GB_FD == OFPPF_1GB_FD); /* bit 5 */ | |
3775 | BUILD_ASSERT_DECL((int) NETDEV_F_10GB_FD == OFPPF_10GB_FD); /* bit 6 */ | |
3776 | BUILD_ASSERT_DECL((int) NETDEV_F_40GB_FD == OFPPF11_40GB_FD); /* bit 7 */ | |
3777 | BUILD_ASSERT_DECL((int) NETDEV_F_100GB_FD == OFPPF11_100GB_FD); /* bit 8 */ | |
3778 | BUILD_ASSERT_DECL((int) NETDEV_F_1TB_FD == OFPPF11_1TB_FD); /* bit 9 */ | |
3779 | BUILD_ASSERT_DECL((int) NETDEV_F_OTHER == OFPPF11_OTHER); /* bit 10 */ | |
3780 | BUILD_ASSERT_DECL((int) NETDEV_F_COPPER == OFPPF11_COPPER); /* bit 11 */ | |
3781 | BUILD_ASSERT_DECL((int) NETDEV_F_FIBER == OFPPF11_FIBER); /* bit 12 */ | |
3782 | BUILD_ASSERT_DECL((int) NETDEV_F_AUTONEG == OFPPF11_AUTONEG); /* bit 13 */ | |
3783 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE == OFPPF11_PAUSE); /* bit 14 */ | |
3784 | BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE_ASYM == OFPPF11_PAUSE_ASYM);/* bit 15 */ | |
3785 | ||
3786 | static enum netdev_features | |
3787 | netdev_port_features_from_ofp11(ovs_be32 ofp11) | |
3788 | { | |
3789 | return ntohl(ofp11) & 0xffff; | |
3790 | } | |
3791 | ||
3792 | static ovs_be32 | |
3793 | netdev_port_features_to_ofp11(enum netdev_features features) | |
3794 | { | |
3795 | return htonl(features & 0xffff); | |
3796 | } | |
3797 | ||
3798 | static enum ofperr | |
3799 | ofputil_decode_ofp10_phy_port(struct ofputil_phy_port *pp, | |
3800 | const struct ofp10_phy_port *opp) | |
3801 | { | |
4e022ec0 | 3802 | pp->port_no = u16_to_ofp(ntohs(opp->port_no)); |
74ff3298 | 3803 | pp->hw_addr = opp->hw_addr; |
9e1fd49b BP |
3804 | ovs_strlcpy(pp->name, opp->name, OFP_MAX_PORT_NAME_LEN); |
3805 | ||
3806 | pp->config = ntohl(opp->config) & OFPPC10_ALL; | |
3807 | pp->state = ntohl(opp->state) & OFPPS10_ALL; | |
3808 | ||
3809 | pp->curr = netdev_port_features_from_ofp10(opp->curr); | |
3810 | pp->advertised = netdev_port_features_from_ofp10(opp->advertised); | |
3811 | pp->supported = netdev_port_features_from_ofp10(opp->supported); | |
3812 | pp->peer = netdev_port_features_from_ofp10(opp->peer); | |
3813 | ||
d02a5f8e BP |
3814 | pp->curr_speed = netdev_features_to_bps(pp->curr, 0) / 1000; |
3815 | pp->max_speed = netdev_features_to_bps(pp->supported, 0) / 1000; | |
9e1fd49b BP |
3816 | |
3817 | return 0; | |
3818 | } | |
3819 | ||
3820 | static enum ofperr | |
3821 | ofputil_decode_ofp11_port(struct ofputil_phy_port *pp, | |
3822 | const struct ofp11_port *op) | |
3823 | { | |
3824 | enum ofperr error; | |
3825 | ||
9e1fd49b BP |
3826 | error = ofputil_port_from_ofp11(op->port_no, &pp->port_no); |
3827 | if (error) { | |
3828 | return error; | |
3829 | } | |
74ff3298 | 3830 | pp->hw_addr = op->hw_addr; |
9e1fd49b BP |
3831 | ovs_strlcpy(pp->name, op->name, OFP_MAX_PORT_NAME_LEN); |
3832 | ||
3833 | pp->config = ntohl(op->config) & OFPPC11_ALL; | |
646f2b37 | 3834 | pp->state = ntohl(op->state) & OFPPS11_ALL; |
9e1fd49b BP |
3835 | |
3836 | pp->curr = netdev_port_features_from_ofp11(op->curr); | |
3837 | pp->advertised = netdev_port_features_from_ofp11(op->advertised); | |
3838 | pp->supported = netdev_port_features_from_ofp11(op->supported); | |
3839 | pp->peer = netdev_port_features_from_ofp11(op->peer); | |
3840 | ||
3841 | pp->curr_speed = ntohl(op->curr_speed); | |
3842 | pp->max_speed = ntohl(op->max_speed); | |
3843 | ||
3844 | return 0; | |
3845 | } | |
3846 | ||
8c3cc785 BP |
3847 | static enum ofperr |
3848 | parse_ofp14_port_ethernet_property(const struct ofpbuf *payload, | |
3849 | struct ofputil_phy_port *pp) | |
3850 | { | |
6fd6ed71 | 3851 | struct ofp14_port_desc_prop_ethernet *eth = payload->data; |
8c3cc785 | 3852 | |
6fd6ed71 | 3853 | if (payload->size != sizeof *eth) { |
8c3cc785 BP |
3854 | return OFPERR_OFPBPC_BAD_LEN; |
3855 | } | |
3856 | ||
3857 | pp->curr = netdev_port_features_from_ofp11(eth->curr); | |
3858 | pp->advertised = netdev_port_features_from_ofp11(eth->advertised); | |
3859 | pp->supported = netdev_port_features_from_ofp11(eth->supported); | |
3860 | pp->peer = netdev_port_features_from_ofp11(eth->peer); | |
3861 | ||
3862 | pp->curr_speed = ntohl(eth->curr_speed); | |
3863 | pp->max_speed = ntohl(eth->max_speed); | |
3864 | ||
3865 | return 0; | |
3866 | } | |
3867 | ||
3868 | static enum ofperr | |
3869 | ofputil_pull_ofp14_port(struct ofputil_phy_port *pp, struct ofpbuf *msg) | |
3870 | { | |
3871 | struct ofpbuf properties; | |
3872 | struct ofp14_port *op; | |
3873 | enum ofperr error; | |
3874 | size_t len; | |
3875 | ||
3876 | op = ofpbuf_try_pull(msg, sizeof *op); | |
3877 | if (!op) { | |
3878 | return OFPERR_OFPBRC_BAD_LEN; | |
3879 | } | |
3880 | ||
3881 | len = ntohs(op->length); | |
6fd6ed71 | 3882 | if (len < sizeof *op || len - sizeof *op > msg->size) { |
8c3cc785 BP |
3883 | return OFPERR_OFPBRC_BAD_LEN; |
3884 | } | |
3885 | len -= sizeof *op; | |
3886 | ofpbuf_use_const(&properties, ofpbuf_pull(msg, len), len); | |
3887 | ||
3888 | error = ofputil_port_from_ofp11(op->port_no, &pp->port_no); | |
3889 | if (error) { | |
3890 | return error; | |
3891 | } | |
74ff3298 | 3892 | pp->hw_addr = op->hw_addr; |
8c3cc785 BP |
3893 | ovs_strlcpy(pp->name, op->name, OFP_MAX_PORT_NAME_LEN); |
3894 | ||
3895 | pp->config = ntohl(op->config) & OFPPC11_ALL; | |
3896 | pp->state = ntohl(op->state) & OFPPS11_ALL; | |
3897 | ||
6fd6ed71 | 3898 | while (properties.size > 0) { |
8c3cc785 BP |
3899 | struct ofpbuf payload; |
3900 | enum ofperr error; | |
34a543e3 | 3901 | uint64_t type; |
8c3cc785 | 3902 | |
c5562271 | 3903 | error = ofpprop_pull(&properties, &payload, &type); |
8c3cc785 BP |
3904 | if (error) { |
3905 | return error; | |
3906 | } | |
3907 | ||
3908 | switch (type) { | |
3909 | case OFPPDPT14_ETHERNET: | |
3910 | error = parse_ofp14_port_ethernet_property(&payload, pp); | |
3911 | break; | |
3912 | ||
3913 | default: | |
34a543e3 | 3914 | error = OFPPROP_UNKNOWN(true, "port", type); |
8c3cc785 BP |
3915 | break; |
3916 | } | |
3917 | ||
3918 | if (error) { | |
3919 | return error; | |
3920 | } | |
3921 | } | |
3922 | ||
3923 | return 0; | |
3924 | } | |
3925 | ||
9e1fd49b BP |
3926 | static void |
3927 | ofputil_encode_ofp10_phy_port(const struct ofputil_phy_port *pp, | |
3928 | struct ofp10_phy_port *opp) | |
3929 | { | |
3930 | memset(opp, 0, sizeof *opp); | |
3931 | ||
4e022ec0 | 3932 | opp->port_no = htons(ofp_to_u16(pp->port_no)); |
74ff3298 | 3933 | opp->hw_addr = pp->hw_addr; |
9e1fd49b BP |
3934 | ovs_strlcpy(opp->name, pp->name, OFP_MAX_PORT_NAME_LEN); |
3935 | ||
3936 | opp->config = htonl(pp->config & OFPPC10_ALL); | |
3937 | opp->state = htonl(pp->state & OFPPS10_ALL); | |
3938 | ||
3939 | opp->curr = netdev_port_features_to_ofp10(pp->curr); | |
3940 | opp->advertised = netdev_port_features_to_ofp10(pp->advertised); | |
3941 | opp->supported = netdev_port_features_to_ofp10(pp->supported); | |
3942 | opp->peer = netdev_port_features_to_ofp10(pp->peer); | |
3943 | } | |
3944 | ||
3945 | static void | |
3946 | ofputil_encode_ofp11_port(const struct ofputil_phy_port *pp, | |
3947 | struct ofp11_port *op) | |
3948 | { | |
3949 | memset(op, 0, sizeof *op); | |
3950 | ||
3951 | op->port_no = ofputil_port_to_ofp11(pp->port_no); | |
74ff3298 | 3952 | op->hw_addr = pp->hw_addr; |
9e1fd49b BP |
3953 | ovs_strlcpy(op->name, pp->name, OFP_MAX_PORT_NAME_LEN); |
3954 | ||
3955 | op->config = htonl(pp->config & OFPPC11_ALL); | |
3956 | op->state = htonl(pp->state & OFPPS11_ALL); | |
3957 | ||
3958 | op->curr = netdev_port_features_to_ofp11(pp->curr); | |
3959 | op->advertised = netdev_port_features_to_ofp11(pp->advertised); | |
3960 | op->supported = netdev_port_features_to_ofp11(pp->supported); | |
3961 | op->peer = netdev_port_features_to_ofp11(pp->peer); | |
3962 | ||
3963 | op->curr_speed = htonl(pp->curr_speed); | |
3964 | op->max_speed = htonl(pp->max_speed); | |
3965 | } | |
3966 | ||
8c3cc785 BP |
3967 | static void |
3968 | ofputil_put_ofp14_port(const struct ofputil_phy_port *pp, | |
3969 | struct ofpbuf *b) | |
3970 | { | |
3971 | struct ofp14_port *op; | |
3972 | struct ofp14_port_desc_prop_ethernet *eth; | |
3973 | ||
3974 | ofpbuf_prealloc_tailroom(b, sizeof *op + sizeof *eth); | |
3975 | ||
3976 | op = ofpbuf_put_zeros(b, sizeof *op); | |
3977 | op->port_no = ofputil_port_to_ofp11(pp->port_no); | |
3978 | op->length = htons(sizeof *op + sizeof *eth); | |
74ff3298 | 3979 | op->hw_addr = pp->hw_addr; |
8c3cc785 BP |
3980 | ovs_strlcpy(op->name, pp->name, sizeof op->name); |
3981 | op->config = htonl(pp->config & OFPPC11_ALL); | |
3982 | op->state = htonl(pp->state & OFPPS11_ALL); | |
3983 | ||
303721ee | 3984 | eth = ofpprop_put_zeros(b, OFPPDPT14_ETHERNET, sizeof *eth); |
8c3cc785 BP |
3985 | eth->curr = netdev_port_features_to_ofp11(pp->curr); |
3986 | eth->advertised = netdev_port_features_to_ofp11(pp->advertised); | |
3987 | eth->supported = netdev_port_features_to_ofp11(pp->supported); | |
3988 | eth->peer = netdev_port_features_to_ofp11(pp->peer); | |
3989 | eth->curr_speed = htonl(pp->curr_speed); | |
3990 | eth->max_speed = htonl(pp->max_speed); | |
3991 | } | |
3992 | ||
9e1fd49b | 3993 | static void |
2e3fa633 SH |
3994 | ofputil_put_phy_port(enum ofp_version ofp_version, |
3995 | const struct ofputil_phy_port *pp, struct ofpbuf *b) | |
9e1fd49b | 3996 | { |
2e3fa633 SH |
3997 | switch (ofp_version) { |
3998 | case OFP10_VERSION: { | |
6b0f20ac BP |
3999 | struct ofp10_phy_port *opp = ofpbuf_put_uninit(b, sizeof *opp); |
4000 | ofputil_encode_ofp10_phy_port(pp, opp); | |
2e3fa633 SH |
4001 | break; |
4002 | } | |
4003 | ||
4004 | case OFP11_VERSION: | |
2e1ae200 JR |
4005 | case OFP12_VERSION: |
4006 | case OFP13_VERSION: { | |
6b0f20ac BP |
4007 | struct ofp11_port *op = ofpbuf_put_uninit(b, sizeof *op); |
4008 | ofputil_encode_ofp11_port(pp, op); | |
2e3fa633 SH |
4009 | break; |
4010 | } | |
4011 | ||
c37c0382 | 4012 | case OFP14_VERSION: |
42dccab5 | 4013 | case OFP15_VERSION: |
8c3cc785 | 4014 | ofputil_put_ofp14_port(pp, b); |
c37c0382 AC |
4015 | break; |
4016 | ||
2e3fa633 | 4017 | default: |
428b2edd | 4018 | OVS_NOT_REACHED(); |
9e1fd49b BP |
4019 | } |
4020 | } | |
2be393ed | 4021 | |
70ae4f93 BP |
4022 | enum ofperr |
4023 | ofputil_decode_port_desc_stats_request(const struct ofp_header *request, | |
4024 | ofp_port_t *port) | |
4025 | { | |
4026 | struct ofpbuf b; | |
4027 | enum ofpraw raw; | |
4028 | ||
4029 | ofpbuf_use_const(&b, request, ntohs(request->length)); | |
4030 | raw = ofpraw_pull_assert(&b); | |
4031 | if (raw == OFPRAW_OFPST10_PORT_DESC_REQUEST) { | |
4032 | *port = OFPP_ANY; | |
4033 | return 0; | |
4034 | } else if (raw == OFPRAW_OFPST15_PORT_DESC_REQUEST) { | |
4035 | ovs_be32 *ofp11_port; | |
4036 | ||
4037 | ofp11_port = ofpbuf_pull(&b, sizeof *ofp11_port); | |
4038 | return ofputil_port_from_ofp11(*ofp11_port, port); | |
4039 | } else { | |
4040 | OVS_NOT_REACHED(); | |
4041 | } | |
4042 | } | |
4043 | ||
4044 | struct ofpbuf * | |
4045 | ofputil_encode_port_desc_stats_request(enum ofp_version ofp_version, | |
4046 | ofp_port_t port) | |
4047 | { | |
4048 | struct ofpbuf *request; | |
70ae4f93 BP |
4049 | |
4050 | switch (ofp_version) { | |
4051 | case OFP10_VERSION: | |
4052 | case OFP11_VERSION: | |
4053 | case OFP12_VERSION: | |
4054 | case OFP13_VERSION: | |
4055 | case OFP14_VERSION: | |
4056 | request = ofpraw_alloc(OFPRAW_OFPST10_PORT_DESC_REQUEST, | |
4057 | ofp_version, 0); | |
4058 | break; | |
7448d548 MT |
4059 | case OFP15_VERSION:{ |
4060 | struct ofp15_port_desc_request *req; | |
70ae4f93 BP |
4061 | request = ofpraw_alloc(OFPRAW_OFPST15_PORT_DESC_REQUEST, |
4062 | ofp_version, 0); | |
7448d548 MT |
4063 | req = ofpbuf_put_zeros(request, sizeof *req); |
4064 | req->port_no = ofputil_port_to_ofp11(port); | |
70ae4f93 | 4065 | break; |
7448d548 | 4066 | } |
70ae4f93 BP |
4067 | default: |
4068 | OVS_NOT_REACHED(); | |
4069 | } | |
4070 | ||
4071 | return request; | |
4072 | } | |
4073 | ||
2be393ed | 4074 | void |
e28ac5cf | 4075 | ofputil_append_port_desc_stats_reply(const struct ofputil_phy_port *pp, |
ca6ba700 | 4076 | struct ovs_list *replies) |
2be393ed | 4077 | { |
6b0f20ac | 4078 | struct ofpbuf *reply = ofpbuf_from_list(list_back(replies)); |
6fd6ed71 | 4079 | size_t start_ofs = reply->size; |
c37c0382 | 4080 | |
6b0f20ac BP |
4081 | ofputil_put_phy_port(ofpmp_version(replies), pp, reply); |
4082 | ofpmp_postappend(replies, start_ofs); | |
2be393ed | 4083 | } |
9e1fd49b | 4084 | \f |
ad99e2ed BP |
4085 | /* ofputil_switch_config */ |
4086 | ||
4087 | /* Decodes 'oh', which must be an OFPT_GET_CONFIG_REPLY or OFPT_SET_CONFIG | |
4088 | * message, into 'config'. Returns false if 'oh' contained any flags that | |
4089 | * aren't specified in its version of OpenFlow, true otherwise. */ | |
4090 | static bool | |
4091 | ofputil_decode_switch_config(const struct ofp_header *oh, | |
4092 | struct ofputil_switch_config *config) | |
4093 | { | |
4094 | const struct ofp_switch_config *osc; | |
4095 | struct ofpbuf b; | |
4096 | ||
4097 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
4098 | ofpraw_pull_assert(&b); | |
4099 | osc = ofpbuf_pull(&b, sizeof *osc); | |
4100 | ||
4101 | config->frag = ntohs(osc->flags) & OFPC_FRAG_MASK; | |
4102 | config->miss_send_len = ntohs(osc->miss_send_len); | |
4103 | ||
4104 | ovs_be16 valid_mask = htons(OFPC_FRAG_MASK); | |
4105 | if (oh->version < OFP13_VERSION) { | |
4106 | const ovs_be16 ttl_bit = htons(OFPC_INVALID_TTL_TO_CONTROLLER); | |
4107 | valid_mask |= ttl_bit; | |
4108 | config->invalid_ttl_to_controller = (osc->flags & ttl_bit) != 0; | |
4109 | } else { | |
4110 | config->invalid_ttl_to_controller = -1; | |
4111 | } | |
4112 | ||
4113 | return !(osc->flags & ~valid_mask); | |
4114 | } | |
4115 | ||
4116 | void | |
4117 | ofputil_decode_get_config_reply(const struct ofp_header *oh, | |
4118 | struct ofputil_switch_config *config) | |
4119 | { | |
4120 | ofputil_decode_switch_config(oh, config); | |
4121 | } | |
4122 | ||
4123 | enum ofperr | |
4124 | ofputil_decode_set_config(const struct ofp_header *oh, | |
4125 | struct ofputil_switch_config *config) | |
4126 | { | |
4127 | return (ofputil_decode_switch_config(oh, config) | |
4128 | ? 0 | |
4129 | : OFPERR_OFPSCFC_BAD_FLAGS); | |
4130 | } | |
4131 | ||
4132 | static struct ofpbuf * | |
4133 | ofputil_put_switch_config(const struct ofputil_switch_config *config, | |
4134 | struct ofpbuf *b) | |
4135 | { | |
4136 | const struct ofp_header *oh = b->data; | |
4137 | struct ofp_switch_config *osc = ofpbuf_put_zeros(b, sizeof *osc); | |
4138 | osc->flags = htons(config->frag); | |
4139 | if (config->invalid_ttl_to_controller > 0 && oh->version < OFP13_VERSION) { | |
4140 | osc->flags |= htons(OFPC_INVALID_TTL_TO_CONTROLLER); | |
4141 | } | |
4142 | osc->miss_send_len = htons(config->miss_send_len); | |
4143 | return b; | |
4144 | } | |
4145 | ||
4146 | struct ofpbuf * | |
4147 | ofputil_encode_get_config_reply(const struct ofp_header *request, | |
4148 | const struct ofputil_switch_config *config) | |
4149 | { | |
4150 | struct ofpbuf *b = ofpraw_alloc_reply(OFPRAW_OFPT_GET_CONFIG_REPLY, | |
4151 | request, 0); | |
4152 | return ofputil_put_switch_config(config, b); | |
4153 | } | |
4154 | ||
4155 | struct ofpbuf * | |
4156 | ofputil_encode_set_config(const struct ofputil_switch_config *config, | |
4157 | enum ofp_version version) | |
4158 | { | |
4159 | struct ofpbuf *b = ofpraw_alloc(OFPRAW_OFPT_SET_CONFIG, version, 0); | |
4160 | return ofputil_put_switch_config(config, b); | |
4161 | } | |
4162 | \f | |
9e1fd49b BP |
4163 | /* ofputil_switch_features */ |
4164 | ||
4165 | #define OFPC_COMMON (OFPC_FLOW_STATS | OFPC_TABLE_STATS | OFPC_PORT_STATS | \ | |
60202987 | 4166 | OFPC_IP_REASM | OFPC_QUEUE_STATS) |
9e1fd49b BP |
4167 | BUILD_ASSERT_DECL((int) OFPUTIL_C_FLOW_STATS == OFPC_FLOW_STATS); |
4168 | BUILD_ASSERT_DECL((int) OFPUTIL_C_TABLE_STATS == OFPC_TABLE_STATS); | |
4169 | BUILD_ASSERT_DECL((int) OFPUTIL_C_PORT_STATS == OFPC_PORT_STATS); | |
4170 | BUILD_ASSERT_DECL((int) OFPUTIL_C_IP_REASM == OFPC_IP_REASM); | |
4171 | BUILD_ASSERT_DECL((int) OFPUTIL_C_QUEUE_STATS == OFPC_QUEUE_STATS); | |
4172 | BUILD_ASSERT_DECL((int) OFPUTIL_C_ARP_MATCH_IP == OFPC_ARP_MATCH_IP); | |
4173 | ||
60202987 SH |
4174 | static uint32_t |
4175 | ofputil_capabilities_mask(enum ofp_version ofp_version) | |
4176 | { | |
0746a84f | 4177 | /* Handle capabilities whose bit is unique for all OpenFlow versions */ |
60202987 SH |
4178 | switch (ofp_version) { |
4179 | case OFP10_VERSION: | |
4180 | case OFP11_VERSION: | |
4181 | return OFPC_COMMON | OFPC_ARP_MATCH_IP; | |
4182 | case OFP12_VERSION: | |
2e1ae200 | 4183 | case OFP13_VERSION: |
c37c0382 | 4184 | case OFP14_VERSION: |
42dccab5 | 4185 | case OFP15_VERSION: |
18cc69d9 | 4186 | return OFPC_COMMON | OFPC12_PORT_BLOCKED; |
60202987 SH |
4187 | default: |
4188 | /* Caller needs to check osf->header.version itself */ | |
4189 | return 0; | |
4190 | } | |
4191 | } | |
4192 | ||
9e1fd49b BP |
4193 | /* Decodes an OpenFlow 1.0 or 1.1 "switch_features" structure 'osf' into an |
4194 | * abstract representation in '*features'. Initializes '*b' to iterate over | |
4195 | * the OpenFlow port structures following 'osf' with later calls to | |
2be393ed | 4196 | * ofputil_pull_phy_port(). Returns 0 if successful, otherwise an |
9e1fd49b BP |
4197 | * OFPERR_* value. */ |
4198 | enum ofperr | |
982697a4 | 4199 | ofputil_decode_switch_features(const struct ofp_header *oh, |
9e1fd49b BP |
4200 | struct ofputil_switch_features *features, |
4201 | struct ofpbuf *b) | |
4202 | { | |
982697a4 BP |
4203 | const struct ofp_switch_features *osf; |
4204 | enum ofpraw raw; | |
4205 | ||
4206 | ofpbuf_use_const(b, oh, ntohs(oh->length)); | |
4207 | raw = ofpraw_pull_assert(b); | |
9e1fd49b | 4208 | |
982697a4 | 4209 | osf = ofpbuf_pull(b, sizeof *osf); |
9e1fd49b BP |
4210 | features->datapath_id = ntohll(osf->datapath_id); |
4211 | features->n_buffers = ntohl(osf->n_buffers); | |
4212 | features->n_tables = osf->n_tables; | |
2e1ae200 | 4213 | features->auxiliary_id = 0; |
9e1fd49b | 4214 | |
60202987 SH |
4215 | features->capabilities = ntohl(osf->capabilities) & |
4216 | ofputil_capabilities_mask(oh->version); | |
9e1fd49b | 4217 | |
982697a4 | 4218 | if (raw == OFPRAW_OFPT10_FEATURES_REPLY) { |
9e1fd49b BP |
4219 | if (osf->capabilities & htonl(OFPC10_STP)) { |
4220 | features->capabilities |= OFPUTIL_C_STP; | |
4221 | } | |
08d1e234 BP |
4222 | features->ofpacts = ofpact_bitmap_from_openflow(osf->actions, |
4223 | OFP10_VERSION); | |
2e1ae200 JR |
4224 | } else if (raw == OFPRAW_OFPT11_FEATURES_REPLY |
4225 | || raw == OFPRAW_OFPT13_FEATURES_REPLY) { | |
9e1fd49b BP |
4226 | if (osf->capabilities & htonl(OFPC11_GROUP_STATS)) { |
4227 | features->capabilities |= OFPUTIL_C_GROUP_STATS; | |
4228 | } | |
08d1e234 | 4229 | features->ofpacts = 0; |
2e1ae200 JR |
4230 | if (raw == OFPRAW_OFPT13_FEATURES_REPLY) { |
4231 | features->auxiliary_id = osf->auxiliary_id; | |
4232 | } | |
9e1fd49b BP |
4233 | } else { |
4234 | return OFPERR_OFPBRC_BAD_VERSION; | |
4235 | } | |
4236 | ||
4237 | return 0; | |
4238 | } | |
4239 | ||
fca6d553 BP |
4240 | /* In OpenFlow 1.0, 1.1, and 1.2, an OFPT_FEATURES_REPLY message lists all the |
4241 | * switch's ports, unless there are too many to fit. In OpenFlow 1.3 and | |
4242 | * later, an OFPT_FEATURES_REPLY does not list ports at all. | |
4243 | * | |
4244 | * Given a buffer 'b' that contains a Features Reply message, this message | |
4245 | * checks if it contains a complete list of the switch's ports. Returns true, | |
4246 | * if so. Returns false if the list is missing (OF1.3+) or incomplete | |
4247 | * (OF1.0/1.1/1.2), and in the latter case removes all of the ports from the | |
4248 | * message. | |
4249 | * | |
4250 | * When this function returns false, the caller should send an OFPST_PORT_DESC | |
4251 | * stats request to get the ports. */ | |
347b7ac4 | 4252 | bool |
fca6d553 | 4253 | ofputil_switch_features_has_ports(struct ofpbuf *b) |
347b7ac4 | 4254 | { |
6fd6ed71 | 4255 | struct ofp_header *oh = b->data; |
13e1aff8 | 4256 | size_t phy_port_size; |
347b7ac4 | 4257 | |
fca6d553 | 4258 | if (oh->version >= OFP13_VERSION) { |
13e1aff8 | 4259 | /* OpenFlow 1.3+ never has ports in the feature reply. */ |
fca6d553 | 4260 | return false; |
13e1aff8 BP |
4261 | } |
4262 | ||
4263 | phy_port_size = (oh->version == OFP10_VERSION | |
4264 | ? sizeof(struct ofp10_phy_port) | |
4265 | : sizeof(struct ofp11_port)); | |
4266 | if (ntohs(oh->length) + phy_port_size <= UINT16_MAX) { | |
4267 | /* There's room for additional ports in the feature reply. | |
4268 | * Assume that the list is complete. */ | |
347b7ac4 JP |
4269 | return true; |
4270 | } | |
13e1aff8 BP |
4271 | |
4272 | /* The feature reply has no room for more ports. Probably the list is | |
4273 | * truncated. Drop the ports and tell the caller to retrieve them with | |
4274 | * OFPST_PORT_DESC. */ | |
6fd6ed71 | 4275 | b->size = sizeof *oh + sizeof(struct ofp_switch_features); |
13e1aff8 BP |
4276 | ofpmsg_update_length(b); |
4277 | return false; | |
347b7ac4 JP |
4278 | } |
4279 | ||
9e1fd49b BP |
4280 | /* Returns a buffer owned by the caller that encodes 'features' in the format |
4281 | * required by 'protocol' with the given 'xid'. The caller should append port | |
4282 | * information to the buffer with subsequent calls to | |
4283 | * ofputil_put_switch_features_port(). */ | |
4284 | struct ofpbuf * | |
4285 | ofputil_encode_switch_features(const struct ofputil_switch_features *features, | |
4286 | enum ofputil_protocol protocol, ovs_be32 xid) | |
4287 | { | |
4288 | struct ofp_switch_features *osf; | |
4289 | struct ofpbuf *b; | |
2e3fa633 SH |
4290 | enum ofp_version version; |
4291 | enum ofpraw raw; | |
982697a4 BP |
4292 | |
4293 | version = ofputil_protocol_to_ofp_version(protocol); | |
2e3fa633 SH |
4294 | switch (version) { |
4295 | case OFP10_VERSION: | |
4296 | raw = OFPRAW_OFPT10_FEATURES_REPLY; | |
4297 | break; | |
4298 | case OFP11_VERSION: | |
4299 | case OFP12_VERSION: | |
4300 | raw = OFPRAW_OFPT11_FEATURES_REPLY; | |
4301 | break; | |
2e1ae200 | 4302 | case OFP13_VERSION: |
c37c0382 | 4303 | case OFP14_VERSION: |
42dccab5 | 4304 | case OFP15_VERSION: |
2e1ae200 JR |
4305 | raw = OFPRAW_OFPT13_FEATURES_REPLY; |
4306 | break; | |
2e3fa633 | 4307 | default: |
428b2edd | 4308 | OVS_NOT_REACHED(); |
2e3fa633 SH |
4309 | } |
4310 | b = ofpraw_alloc_xid(raw, version, xid, 0); | |
982697a4 | 4311 | osf = ofpbuf_put_zeros(b, sizeof *osf); |
9e1fd49b BP |
4312 | osf->datapath_id = htonll(features->datapath_id); |
4313 | osf->n_buffers = htonl(features->n_buffers); | |
4314 | osf->n_tables = features->n_tables; | |
4315 | ||
4316 | osf->capabilities = htonl(features->capabilities & OFPC_COMMON); | |
60202987 SH |
4317 | osf->capabilities = htonl(features->capabilities & |
4318 | ofputil_capabilities_mask(version)); | |
2e3fa633 SH |
4319 | switch (version) { |
4320 | case OFP10_VERSION: | |
9e1fd49b BP |
4321 | if (features->capabilities & OFPUTIL_C_STP) { |
4322 | osf->capabilities |= htonl(OFPC10_STP); | |
4323 | } | |
08d1e234 BP |
4324 | osf->actions = ofpact_bitmap_to_openflow(features->ofpacts, |
4325 | OFP10_VERSION); | |
2e3fa633 | 4326 | break; |
2e1ae200 | 4327 | case OFP13_VERSION: |
c37c0382 | 4328 | case OFP14_VERSION: |
42dccab5 | 4329 | case OFP15_VERSION: |
2e1ae200 JR |
4330 | osf->auxiliary_id = features->auxiliary_id; |
4331 | /* fall through */ | |
2e3fa633 SH |
4332 | case OFP11_VERSION: |
4333 | case OFP12_VERSION: | |
9e1fd49b BP |
4334 | if (features->capabilities & OFPUTIL_C_GROUP_STATS) { |
4335 | osf->capabilities |= htonl(OFPC11_GROUP_STATS); | |
4336 | } | |
2e3fa633 SH |
4337 | break; |
4338 | default: | |
428b2edd | 4339 | OVS_NOT_REACHED(); |
9e1fd49b BP |
4340 | } |
4341 | ||
4342 | return b; | |
4343 | } | |
4344 | ||
4345 | /* Encodes 'pp' into the format required by the switch_features message already | |
4346 | * in 'b', which should have been returned by ofputil_encode_switch_features(), | |
4347 | * and appends the encoded version to 'b'. */ | |
4348 | void | |
4349 | ofputil_put_switch_features_port(const struct ofputil_phy_port *pp, | |
4350 | struct ofpbuf *b) | |
4351 | { | |
6fd6ed71 | 4352 | const struct ofp_header *oh = b->data; |
9e1fd49b | 4353 | |
e0c91c0c | 4354 | if (oh->version < OFP13_VERSION) { |
6b0f20ac BP |
4355 | /* Try adding a port description to the message, but drop it again if |
4356 | * the buffer overflows. (This possibility for overflow is why | |
4357 | * OpenFlow 1.3+ moved port descriptions into a multipart message.) */ | |
6fd6ed71 | 4358 | size_t start_ofs = b->size; |
e0c91c0c | 4359 | ofputil_put_phy_port(oh->version, pp, b); |
6fd6ed71 PS |
4360 | if (b->size > UINT16_MAX) { |
4361 | b->size = start_ofs; | |
6b0f20ac | 4362 | } |
e0c91c0c | 4363 | } |
9e1fd49b BP |
4364 | } |
4365 | \f | |
4366 | /* ofputil_port_status */ | |
4367 | ||
4368 | /* Decodes the OpenFlow "port status" message in '*ops' into an abstract form | |
4369 | * in '*ps'. Returns 0 if successful, otherwise an OFPERR_* value. */ | |
4370 | enum ofperr | |
982697a4 | 4371 | ofputil_decode_port_status(const struct ofp_header *oh, |
9e1fd49b BP |
4372 | struct ofputil_port_status *ps) |
4373 | { | |
982697a4 | 4374 | const struct ofp_port_status *ops; |
9e1fd49b BP |
4375 | struct ofpbuf b; |
4376 | int retval; | |
4377 | ||
982697a4 BP |
4378 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
4379 | ofpraw_pull_assert(&b); | |
4380 | ops = ofpbuf_pull(&b, sizeof *ops); | |
4381 | ||
9e1fd49b BP |
4382 | if (ops->reason != OFPPR_ADD && |
4383 | ops->reason != OFPPR_DELETE && | |
4384 | ops->reason != OFPPR_MODIFY) { | |
4385 | return OFPERR_NXBRC_BAD_REASON; | |
4386 | } | |
4387 | ps->reason = ops->reason; | |
4388 | ||
982697a4 | 4389 | retval = ofputil_pull_phy_port(oh->version, &b, &ps->desc); |
cb22974d | 4390 | ovs_assert(retval != EOF); |
9e1fd49b BP |
4391 | return retval; |
4392 | } | |
4393 | ||
4394 | /* Converts the abstract form of a "port status" message in '*ps' into an | |
4395 | * OpenFlow message suitable for 'protocol', and returns that encoded form in | |
4396 | * a buffer owned by the caller. */ | |
4397 | struct ofpbuf * | |
4398 | ofputil_encode_port_status(const struct ofputil_port_status *ps, | |
4399 | enum ofputil_protocol protocol) | |
4400 | { | |
4401 | struct ofp_port_status *ops; | |
4402 | struct ofpbuf *b; | |
2e3fa633 SH |
4403 | enum ofp_version version; |
4404 | enum ofpraw raw; | |
982697a4 BP |
4405 | |
4406 | version = ofputil_protocol_to_ofp_version(protocol); | |
2e3fa633 SH |
4407 | switch (version) { |
4408 | case OFP10_VERSION: | |
4409 | raw = OFPRAW_OFPT10_PORT_STATUS; | |
4410 | break; | |
4411 | ||
4412 | case OFP11_VERSION: | |
4413 | case OFP12_VERSION: | |
2e1ae200 | 4414 | case OFP13_VERSION: |
2e3fa633 SH |
4415 | raw = OFPRAW_OFPT11_PORT_STATUS; |
4416 | break; | |
4417 | ||
8c3cc785 | 4418 | case OFP14_VERSION: |
42dccab5 | 4419 | case OFP15_VERSION: |
8c3cc785 BP |
4420 | raw = OFPRAW_OFPT14_PORT_STATUS; |
4421 | break; | |
4422 | ||
2e3fa633 | 4423 | default: |
428b2edd | 4424 | OVS_NOT_REACHED(); |
2e3fa633 SH |
4425 | } |
4426 | ||
4427 | b = ofpraw_alloc_xid(raw, version, htonl(0), 0); | |
982697a4 | 4428 | ops = ofpbuf_put_zeros(b, sizeof *ops); |
9e1fd49b | 4429 | ops->reason = ps->reason; |
982697a4 BP |
4430 | ofputil_put_phy_port(version, &ps->desc, b); |
4431 | ofpmsg_update_length(b); | |
9e1fd49b BP |
4432 | return b; |
4433 | } | |
918f2b82 | 4434 | |
9e1fd49b BP |
4435 | /* ofputil_port_mod */ |
4436 | ||
18cc69d9 BP |
4437 | static enum ofperr |
4438 | parse_port_mod_ethernet_property(struct ofpbuf *property, | |
4439 | struct ofputil_port_mod *pm) | |
4440 | { | |
b611d3ac BP |
4441 | ovs_be32 advertise; |
4442 | enum ofperr error; | |
18cc69d9 | 4443 | |
b611d3ac BP |
4444 | error = ofpprop_parse_be32(property, &advertise); |
4445 | if (!error) { | |
4446 | pm->advertise = netdev_port_features_from_ofp11(advertise); | |
18cc69d9 | 4447 | } |
b611d3ac | 4448 | return error; |
18cc69d9 BP |
4449 | } |
4450 | ||
9e1fd49b BP |
4451 | /* Decodes the OpenFlow "port mod" message in '*oh' into an abstract form in |
4452 | * '*pm'. Returns 0 if successful, otherwise an OFPERR_* value. */ | |
4453 | enum ofperr | |
4454 | ofputil_decode_port_mod(const struct ofp_header *oh, | |
18cc69d9 | 4455 | struct ofputil_port_mod *pm, bool loose) |
9e1fd49b | 4456 | { |
982697a4 BP |
4457 | enum ofpraw raw; |
4458 | struct ofpbuf b; | |
9e1fd49b | 4459 | |
982697a4 BP |
4460 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
4461 | raw = ofpraw_pull_assert(&b); | |
4462 | ||
4463 | if (raw == OFPRAW_OFPT10_PORT_MOD) { | |
6fd6ed71 | 4464 | const struct ofp10_port_mod *opm = b.data; |
9e1fd49b | 4465 | |
4e022ec0 | 4466 | pm->port_no = u16_to_ofp(ntohs(opm->port_no)); |
74ff3298 | 4467 | pm->hw_addr = opm->hw_addr; |
9e1fd49b BP |
4468 | pm->config = ntohl(opm->config) & OFPPC10_ALL; |
4469 | pm->mask = ntohl(opm->mask) & OFPPC10_ALL; | |
4470 | pm->advertise = netdev_port_features_from_ofp10(opm->advertise); | |
982697a4 | 4471 | } else if (raw == OFPRAW_OFPT11_PORT_MOD) { |
6fd6ed71 | 4472 | const struct ofp11_port_mod *opm = b.data; |
9e1fd49b BP |
4473 | enum ofperr error; |
4474 | ||
9e1fd49b BP |
4475 | error = ofputil_port_from_ofp11(opm->port_no, &pm->port_no); |
4476 | if (error) { | |
4477 | return error; | |
4478 | } | |
4479 | ||
74ff3298 | 4480 | pm->hw_addr = opm->hw_addr; |
9e1fd49b BP |
4481 | pm->config = ntohl(opm->config) & OFPPC11_ALL; |
4482 | pm->mask = ntohl(opm->mask) & OFPPC11_ALL; | |
4483 | pm->advertise = netdev_port_features_from_ofp11(opm->advertise); | |
18cc69d9 BP |
4484 | } else if (raw == OFPRAW_OFPT14_PORT_MOD) { |
4485 | const struct ofp14_port_mod *opm = ofpbuf_pull(&b, sizeof *opm); | |
4486 | enum ofperr error; | |
4487 | ||
4488 | memset(pm, 0, sizeof *pm); | |
4489 | ||
4490 | error = ofputil_port_from_ofp11(opm->port_no, &pm->port_no); | |
4491 | if (error) { | |
4492 | return error; | |
4493 | } | |
4494 | ||
74ff3298 | 4495 | pm->hw_addr = opm->hw_addr; |
18cc69d9 BP |
4496 | pm->config = ntohl(opm->config) & OFPPC11_ALL; |
4497 | pm->mask = ntohl(opm->mask) & OFPPC11_ALL; | |
4498 | ||
6fd6ed71 | 4499 | while (b.size > 0) { |
18cc69d9 BP |
4500 | struct ofpbuf property; |
4501 | enum ofperr error; | |
34a543e3 | 4502 | uint64_t type; |
18cc69d9 | 4503 | |
c5562271 | 4504 | error = ofpprop_pull(&b, &property, &type); |
18cc69d9 BP |
4505 | if (error) { |
4506 | return error; | |
4507 | } | |
4508 | ||
4509 | switch (type) { | |
4510 | case OFPPMPT14_ETHERNET: | |
4511 | error = parse_port_mod_ethernet_property(&property, pm); | |
4512 | break; | |
4513 | ||
4514 | default: | |
34a543e3 | 4515 | error = OFPPROP_UNKNOWN(loose, "port_mod", type); |
18cc69d9 BP |
4516 | break; |
4517 | } | |
4518 | ||
4519 | if (error) { | |
4520 | return error; | |
4521 | } | |
4522 | } | |
9e1fd49b | 4523 | } else { |
982697a4 | 4524 | return OFPERR_OFPBRC_BAD_TYPE; |
9e1fd49b BP |
4525 | } |
4526 | ||
4527 | pm->config &= pm->mask; | |
4528 | return 0; | |
4529 | } | |
4530 | ||
4531 | /* Converts the abstract form of a "port mod" message in '*pm' into an OpenFlow | |
4532 | * message suitable for 'protocol', and returns that encoded form in a buffer | |
4533 | * owned by the caller. */ | |
4534 | struct ofpbuf * | |
4535 | ofputil_encode_port_mod(const struct ofputil_port_mod *pm, | |
4536 | enum ofputil_protocol protocol) | |
4537 | { | |
2e3fa633 | 4538 | enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol); |
9e1fd49b BP |
4539 | struct ofpbuf *b; |
4540 | ||
2e3fa633 SH |
4541 | switch (ofp_version) { |
4542 | case OFP10_VERSION: { | |
9e1fd49b BP |
4543 | struct ofp10_port_mod *opm; |
4544 | ||
982697a4 BP |
4545 | b = ofpraw_alloc(OFPRAW_OFPT10_PORT_MOD, ofp_version, 0); |
4546 | opm = ofpbuf_put_zeros(b, sizeof *opm); | |
4e022ec0 | 4547 | opm->port_no = htons(ofp_to_u16(pm->port_no)); |
74ff3298 | 4548 | opm->hw_addr = pm->hw_addr; |
9e1fd49b BP |
4549 | opm->config = htonl(pm->config & OFPPC10_ALL); |
4550 | opm->mask = htonl(pm->mask & OFPPC10_ALL); | |
4551 | opm->advertise = netdev_port_features_to_ofp10(pm->advertise); | |
2e3fa633 SH |
4552 | break; |
4553 | } | |
4554 | ||
5fe7c919 | 4555 | case OFP11_VERSION: |
2e1ae200 JR |
4556 | case OFP12_VERSION: |
4557 | case OFP13_VERSION: { | |
9e1fd49b BP |
4558 | struct ofp11_port_mod *opm; |
4559 | ||
982697a4 BP |
4560 | b = ofpraw_alloc(OFPRAW_OFPT11_PORT_MOD, ofp_version, 0); |
4561 | opm = ofpbuf_put_zeros(b, sizeof *opm); | |
026a5179 | 4562 | opm->port_no = ofputil_port_to_ofp11(pm->port_no); |
74ff3298 | 4563 | opm->hw_addr = pm->hw_addr; |
9e1fd49b BP |
4564 | opm->config = htonl(pm->config & OFPPC11_ALL); |
4565 | opm->mask = htonl(pm->mask & OFPPC11_ALL); | |
4566 | opm->advertise = netdev_port_features_to_ofp11(pm->advertise); | |
2e3fa633 SH |
4567 | break; |
4568 | } | |
42dccab5 BP |
4569 | case OFP14_VERSION: |
4570 | case OFP15_VERSION: { | |
18cc69d9 BP |
4571 | struct ofp14_port_mod *opm; |
4572 | ||
b611d3ac | 4573 | b = ofpraw_alloc(OFPRAW_OFPT14_PORT_MOD, ofp_version, 0); |
18cc69d9 BP |
4574 | opm = ofpbuf_put_zeros(b, sizeof *opm); |
4575 | opm->port_no = ofputil_port_to_ofp11(pm->port_no); | |
74ff3298 | 4576 | opm->hw_addr = pm->hw_addr; |
18cc69d9 BP |
4577 | opm->config = htonl(pm->config & OFPPC11_ALL); |
4578 | opm->mask = htonl(pm->mask & OFPPC11_ALL); | |
4579 | ||
4580 | if (pm->advertise) { | |
b611d3ac BP |
4581 | ofpprop_put_be32(b, OFPPMPT14_ETHERNET, |
4582 | netdev_port_features_to_ofp11(pm->advertise)); | |
18cc69d9 | 4583 | } |
c37c0382 | 4584 | break; |
18cc69d9 | 4585 | } |
918f2b82 | 4586 | default: |
428b2edd | 4587 | OVS_NOT_REACHED(); |
918f2b82 AZ |
4588 | } |
4589 | ||
4590 | return b; | |
4591 | } | |
72b25867 BP |
4592 | \f |
4593 | /* Table features. */ | |
918f2b82 | 4594 | |
5deff5aa | 4595 | static enum ofperr |
9a4eddbb | 4596 | pull_table_feature_property(struct ofpbuf *msg, struct ofpbuf *payload, |
34a543e3 | 4597 | uint64_t *typep) |
5deff5aa | 4598 | { |
9a4eddbb | 4599 | enum ofperr error; |
5deff5aa | 4600 | |
c5562271 | 4601 | error = ofpprop_pull(msg, payload, typep); |
9a4eddbb | 4602 | if (payload && !error) { |
b611d3ac | 4603 | ofpbuf_pull(payload, (char *)payload->msg - (char *)payload->header); |
5deff5aa | 4604 | } |
9a4eddbb | 4605 | return error; |
5deff5aa AW |
4606 | } |
4607 | ||
4608 | static enum ofperr | |
08d1e234 BP |
4609 | parse_action_bitmap(struct ofpbuf *payload, enum ofp_version ofp_version, |
4610 | uint64_t *ofpacts) | |
5deff5aa | 4611 | { |
08d1e234 | 4612 | uint32_t types = 0; |
5deff5aa | 4613 | |
6fd6ed71 | 4614 | while (payload->size > 0) { |
08d1e234 | 4615 | enum ofperr error; |
34a543e3 | 4616 | uint64_t type; |
08d1e234 | 4617 | |
34a543e3 | 4618 | error = ofpprop_pull__(payload, NULL, 1, 0x10000, &type); |
5deff5aa AW |
4619 | if (error) { |
4620 | return error; | |
4621 | } | |
08d1e234 BP |
4622 | if (type < CHAR_BIT * sizeof types) { |
4623 | types |= 1u << type; | |
5deff5aa AW |
4624 | } |
4625 | } | |
08d1e234 BP |
4626 | |
4627 | *ofpacts = ofpact_bitmap_from_openflow(htonl(types), ofp_version); | |
5deff5aa AW |
4628 | return 0; |
4629 | } | |
4630 | ||
4631 | static enum ofperr | |
4632 | parse_instruction_ids(struct ofpbuf *payload, bool loose, uint32_t *insts) | |
4633 | { | |
4634 | *insts = 0; | |
6fd6ed71 | 4635 | while (payload->size > 0) { |
5deff5aa AW |
4636 | enum ovs_instruction_type inst; |
4637 | enum ofperr error; | |
34a543e3 | 4638 | uint64_t ofpit; |
5deff5aa | 4639 | |
72b25867 BP |
4640 | /* OF1.3 and OF1.4 aren't clear about padding in the instruction IDs. |
4641 | * It seems clear that they aren't padded to 8 bytes, though, because | |
4642 | * both standards say that "non-experimenter instructions are 4 bytes" | |
4643 | * and do not mention any padding before the first instruction ID. | |
4644 | * (There wouldn't be any point in padding to 8 bytes if the IDs were | |
4645 | * aligned on an odd 4-byte boundary.) | |
4646 | * | |
4647 | * Anyway, we just assume they're all glommed together on byte | |
4648 | * boundaries. */ | |
34a543e3 | 4649 | error = ofpprop_pull__(payload, NULL, 1, 0x10000, &ofpit); |
5deff5aa AW |
4650 | if (error) { |
4651 | return error; | |
4652 | } | |
4653 | ||
4654 | error = ovs_instruction_type_from_inst_type(&inst, ofpit); | |
4655 | if (!error) { | |
4656 | *insts |= 1u << inst; | |
4657 | } else if (!loose) { | |
4658 | return error; | |
4659 | } | |
4660 | } | |
4661 | return 0; | |
4662 | } | |
4663 | ||
4664 | static enum ofperr | |
4665 | parse_table_features_next_table(struct ofpbuf *payload, | |
4666 | unsigned long int *next_tables) | |
4667 | { | |
4668 | size_t i; | |
4669 | ||
4670 | memset(next_tables, 0, bitmap_n_bytes(255)); | |
6fd6ed71 PS |
4671 | for (i = 0; i < payload->size; i++) { |
4672 | uint8_t id = ((const uint8_t *) payload->data)[i]; | |
5deff5aa | 4673 | if (id >= 255) { |
9a4eddbb | 4674 | return OFPERR_OFPBPC_BAD_VALUE; |
5deff5aa AW |
4675 | } |
4676 | bitmap_set1(next_tables, id); | |
4677 | } | |
4678 | return 0; | |
4679 | } | |
4680 | ||
5deff5aa AW |
4681 | static enum ofperr |
4682 | parse_oxms(struct ofpbuf *payload, bool loose, | |
abadfcb0 | 4683 | struct mf_bitmap *exactp, struct mf_bitmap *maskedp) |
5deff5aa | 4684 | { |
abadfcb0 BP |
4685 | struct mf_bitmap exact = MF_BITMAP_INITIALIZER; |
4686 | struct mf_bitmap masked = MF_BITMAP_INITIALIZER; | |
5deff5aa | 4687 | |
6fd6ed71 | 4688 | while (payload->size > 0) { |
5deff5aa AW |
4689 | const struct mf_field *field; |
4690 | enum ofperr error; | |
4691 | bool hasmask; | |
4692 | ||
178742f9 | 4693 | error = nx_pull_header(payload, &field, &hasmask); |
5deff5aa | 4694 | if (!error) { |
abadfcb0 | 4695 | bitmap_set1(hasmask ? masked.bm : exact.bm, field->id); |
5deff5aa AW |
4696 | } else if (error != OFPERR_OFPBMC_BAD_FIELD || !loose) { |
4697 | return error; | |
4698 | } | |
4699 | } | |
4700 | if (exactp) { | |
4701 | *exactp = exact; | |
abadfcb0 | 4702 | } else if (!bitmap_is_all_zeros(exact.bm, MFF_N_IDS)) { |
5deff5aa AW |
4703 | return OFPERR_OFPBMC_BAD_MASK; |
4704 | } | |
4705 | if (maskedp) { | |
4706 | *maskedp = masked; | |
abadfcb0 | 4707 | } else if (!bitmap_is_all_zeros(masked.bm, MFF_N_IDS)) { |
5deff5aa AW |
4708 | return OFPERR_OFPBMC_BAD_MASK; |
4709 | } | |
4710 | return 0; | |
4711 | } | |
4712 | ||
4713 | /* Converts an OFPMP_TABLE_FEATURES request or reply in 'msg' into an abstract | |
4714 | * ofputil_table_features in 'tf'. | |
4715 | * | |
4716 | * If 'loose' is true, this function ignores properties and values that it does | |
4717 | * not understand, as a controller would want to do when interpreting | |
4718 | * capabilities provided by a switch. If 'loose' is false, this function | |
4719 | * treats unknown properties and values as an error, as a switch would want to | |
4720 | * do when interpreting a configuration request made by a controller. | |
4721 | * | |
4722 | * A single OpenFlow message can specify features for multiple tables. Calling | |
4723 | * this function multiple times for a single 'msg' iterates through the tables | |
4724 | * in the message. The caller must initially leave 'msg''s layer pointers null | |
4725 | * and not modify them between calls. | |
4726 | * | |
4727 | * Returns 0 if successful, EOF if no tables were left in this 'msg', otherwise | |
4728 | * a positive "enum ofperr" value. */ | |
4729 | int | |
4730 | ofputil_decode_table_features(struct ofpbuf *msg, | |
4731 | struct ofputil_table_features *tf, bool loose) | |
4732 | { | |
08d1e234 | 4733 | const struct ofp_header *oh; |
5deff5aa | 4734 | struct ofp13_table_features *otf; |
ae665de5 | 4735 | struct ofpbuf properties; |
5deff5aa AW |
4736 | unsigned int len; |
4737 | ||
3c1bb396 BP |
4738 | memset(tf, 0, sizeof *tf); |
4739 | ||
6fd6ed71 | 4740 | if (!msg->header) { |
5deff5aa AW |
4741 | ofpraw_pull_assert(msg); |
4742 | } | |
6fd6ed71 | 4743 | oh = msg->header; |
5deff5aa | 4744 | |
6fd6ed71 | 4745 | if (!msg->size) { |
5deff5aa AW |
4746 | return EOF; |
4747 | } | |
4748 | ||
6fd6ed71 | 4749 | if (msg->size < sizeof *otf) { |
9a4eddbb | 4750 | return OFPERR_OFPBPC_BAD_LEN; |
5deff5aa AW |
4751 | } |
4752 | ||
6fd6ed71 | 4753 | otf = msg->data; |
5deff5aa | 4754 | len = ntohs(otf->length); |
6fd6ed71 | 4755 | if (len < sizeof *otf || len % 8 || len > msg->size) { |
9a4eddbb | 4756 | return OFPERR_OFPBPC_BAD_LEN; |
5deff5aa | 4757 | } |
ae665de5 BP |
4758 | ofpbuf_use_const(&properties, ofpbuf_pull(msg, len), len); |
4759 | ofpbuf_pull(&properties, sizeof *otf); | |
5deff5aa AW |
4760 | |
4761 | tf->table_id = otf->table_id; | |
4762 | if (tf->table_id == OFPTT_ALL) { | |
4763 | return OFPERR_OFPTFFC_BAD_TABLE; | |
4764 | } | |
4765 | ||
4766 | ovs_strlcpy(tf->name, otf->name, OFP_MAX_TABLE_NAME_LEN); | |
4767 | tf->metadata_match = otf->metadata_match; | |
4768 | tf->metadata_write = otf->metadata_write; | |
82c22d34 BP |
4769 | tf->miss_config = OFPUTIL_TABLE_MISS_DEFAULT; |
4770 | if (oh->version >= OFP14_VERSION) { | |
4771 | uint32_t caps = ntohl(otf->capabilities); | |
4772 | tf->supports_eviction = (caps & OFPTC14_EVICTION) != 0; | |
4773 | tf->supports_vacancy_events = (caps & OFPTC14_VACANCY_EVENTS) != 0; | |
4774 | } else { | |
4775 | tf->supports_eviction = -1; | |
4776 | tf->supports_vacancy_events = -1; | |
4777 | } | |
5deff5aa AW |
4778 | tf->max_entries = ntohl(otf->max_entries); |
4779 | ||
6fd6ed71 | 4780 | while (properties.size > 0) { |
5deff5aa AW |
4781 | struct ofpbuf payload; |
4782 | enum ofperr error; | |
34a543e3 | 4783 | uint64_t type; |
5deff5aa | 4784 | |
ae665de5 | 4785 | error = pull_table_feature_property(&properties, &payload, &type); |
5deff5aa AW |
4786 | if (error) { |
4787 | return error; | |
4788 | } | |
4789 | ||
4790 | switch ((enum ofp13_table_feature_prop_type) type) { | |
4791 | case OFPTFPT13_INSTRUCTIONS: | |
4792 | error = parse_instruction_ids(&payload, loose, | |
4793 | &tf->nonmiss.instructions); | |
4794 | break; | |
4795 | case OFPTFPT13_INSTRUCTIONS_MISS: | |
4796 | error = parse_instruction_ids(&payload, loose, | |
4797 | &tf->miss.instructions); | |
4798 | break; | |
4799 | ||
4800 | case OFPTFPT13_NEXT_TABLES: | |
4801 | error = parse_table_features_next_table(&payload, | |
4802 | tf->nonmiss.next); | |
4803 | break; | |
4804 | case OFPTFPT13_NEXT_TABLES_MISS: | |
4805 | error = parse_table_features_next_table(&payload, tf->miss.next); | |
4806 | break; | |
4807 | ||
4808 | case OFPTFPT13_WRITE_ACTIONS: | |
08d1e234 BP |
4809 | error = parse_action_bitmap(&payload, oh->version, |
4810 | &tf->nonmiss.write.ofpacts); | |
5deff5aa AW |
4811 | break; |
4812 | case OFPTFPT13_WRITE_ACTIONS_MISS: | |
08d1e234 BP |
4813 | error = parse_action_bitmap(&payload, oh->version, |
4814 | &tf->miss.write.ofpacts); | |
5deff5aa AW |
4815 | break; |
4816 | ||
4817 | case OFPTFPT13_APPLY_ACTIONS: | |
08d1e234 BP |
4818 | error = parse_action_bitmap(&payload, oh->version, |
4819 | &tf->nonmiss.apply.ofpacts); | |
5deff5aa AW |
4820 | break; |
4821 | case OFPTFPT13_APPLY_ACTIONS_MISS: | |
08d1e234 BP |
4822 | error = parse_action_bitmap(&payload, oh->version, |
4823 | &tf->miss.apply.ofpacts); | |
5deff5aa AW |
4824 | break; |
4825 | ||
4826 | case OFPTFPT13_MATCH: | |
4827 | error = parse_oxms(&payload, loose, &tf->match, &tf->mask); | |
4828 | break; | |
4829 | case OFPTFPT13_WILDCARDS: | |
4830 | error = parse_oxms(&payload, loose, &tf->wildcard, NULL); | |
4831 | break; | |
4832 | ||
4833 | case OFPTFPT13_WRITE_SETFIELD: | |
4834 | error = parse_oxms(&payload, loose, | |
4835 | &tf->nonmiss.write.set_fields, NULL); | |
4836 | break; | |
4837 | case OFPTFPT13_WRITE_SETFIELD_MISS: | |
4838 | error = parse_oxms(&payload, loose, | |
4839 | &tf->miss.write.set_fields, NULL); | |
4840 | break; | |
4841 | case OFPTFPT13_APPLY_SETFIELD: | |
4842 | error = parse_oxms(&payload, loose, | |
4843 | &tf->nonmiss.apply.set_fields, NULL); | |
4844 | break; | |
4845 | case OFPTFPT13_APPLY_SETFIELD_MISS: | |
4846 | error = parse_oxms(&payload, loose, | |
4847 | &tf->miss.apply.set_fields, NULL); | |
4848 | break; | |
4849 | ||
4850 | case OFPTFPT13_EXPERIMENTER: | |
4851 | case OFPTFPT13_EXPERIMENTER_MISS: | |
9a4eddbb | 4852 | default: |
34a543e3 | 4853 | error = OFPPROP_UNKNOWN(loose, "table features", type); |
5deff5aa AW |
4854 | break; |
4855 | } | |
4856 | if (error) { | |
4857 | return error; | |
4858 | } | |
4859 | } | |
4860 | ||
4861 | /* Fix inconsistencies: | |
4862 | * | |
e7227821 BP |
4863 | * - Turn on 'match' bits that are set in 'mask', because maskable |
4864 | * fields are matchable. | |
5deff5aa AW |
4865 | * |
4866 | * - Turn on 'wildcard' bits that are set in 'mask', because a field | |
e7227821 BP |
4867 | * that is arbitrarily maskable can be wildcarded entirely. |
4868 | * | |
4869 | * - Turn off 'wildcard' bits that are not in 'match', because a field | |
4870 | * must be matchable for it to be meaningfully wildcarded. */ | |
4871 | bitmap_or(tf->match.bm, tf->mask.bm, MFF_N_IDS); | |
abadfcb0 | 4872 | bitmap_or(tf->wildcard.bm, tf->mask.bm, MFF_N_IDS); |
e7227821 | 4873 | bitmap_and(tf->wildcard.bm, tf->match.bm, MFF_N_IDS); |
5deff5aa AW |
4874 | |
4875 | return 0; | |
4876 | } | |
4877 | ||
4878 | /* Encodes and returns a request to obtain the table features of a switch. | |
4879 | * The message is encoded for OpenFlow version 'ofp_version'. */ | |
4880 | struct ofpbuf * | |
4881 | ofputil_encode_table_features_request(enum ofp_version ofp_version) | |
4882 | { | |
4883 | struct ofpbuf *request = NULL; | |
4884 | ||
4885 | switch (ofp_version) { | |
4886 | case OFP10_VERSION: | |
4887 | case OFP11_VERSION: | |
4888 | case OFP12_VERSION: | |
4889 | ovs_fatal(0, "dump-table-features needs OpenFlow 1.3 or later " | |
4890 | "(\'-O OpenFlow13\')"); | |
4891 | case OFP13_VERSION: | |
4892 | case OFP14_VERSION: | |
42dccab5 | 4893 | case OFP15_VERSION: |
5deff5aa AW |
4894 | request = ofpraw_alloc(OFPRAW_OFPST13_TABLE_FEATURES_REQUEST, |
4895 | ofp_version, 0); | |
4896 | break; | |
4897 | default: | |
4898 | OVS_NOT_REACHED(); | |
4899 | } | |
4900 | ||
4901 | return request; | |
4902 | } | |
4903 | ||
3c4e10fb BP |
4904 | static void |
4905 | put_fields_property(struct ofpbuf *reply, | |
4906 | const struct mf_bitmap *fields, | |
4907 | const struct mf_bitmap *masks, | |
4908 | enum ofp13_table_feature_prop_type property, | |
4909 | enum ofp_version version) | |
4910 | { | |
4911 | size_t start_ofs; | |
4912 | int field; | |
4913 | ||
c5562271 | 4914 | start_ofs = ofpprop_start(reply, property); |
3c4e10fb | 4915 | BITMAP_FOR_EACH_1 (field, MFF_N_IDS, fields->bm) { |
178742f9 BP |
4916 | nx_put_header(reply, field, version, |
4917 | masks && bitmap_is_set(masks->bm, field)); | |
3c4e10fb | 4918 | } |
c5562271 | 4919 | ofpprop_end(reply, start_ofs); |
3c4e10fb BP |
4920 | } |
4921 | ||
4922 | static void | |
4923 | put_table_action_features(struct ofpbuf *reply, | |
4924 | const struct ofputil_table_action_features *taf, | |
4925 | enum ofp13_table_feature_prop_type actions_type, | |
4926 | enum ofp13_table_feature_prop_type set_fields_type, | |
4927 | int miss_offset, enum ofp_version version) | |
4928 | { | |
c5562271 BP |
4929 | ofpprop_put_bitmap(reply, actions_type + miss_offset, |
4930 | ntohl(ofpact_bitmap_to_openflow(taf->ofpacts, | |
4931 | version))); | |
3c4e10fb BP |
4932 | put_fields_property(reply, &taf->set_fields, NULL, |
4933 | set_fields_type + miss_offset, version); | |
4934 | } | |
4935 | ||
4936 | static void | |
4937 | put_table_instruction_features( | |
4938 | struct ofpbuf *reply, const struct ofputil_table_instruction_features *tif, | |
4939 | int miss_offset, enum ofp_version version) | |
4940 | { | |
4941 | size_t start_ofs; | |
4942 | uint8_t table_id; | |
4943 | ||
c5562271 BP |
4944 | ofpprop_put_bitmap(reply, OFPTFPT13_INSTRUCTIONS + miss_offset, |
4945 | ntohl(ovsinst_bitmap_to_openflow(tif->instructions, | |
4946 | version))); | |
3c4e10fb | 4947 | |
c5562271 | 4948 | start_ofs = ofpprop_start(reply, OFPTFPT13_NEXT_TABLES + miss_offset); |
3c4e10fb BP |
4949 | BITMAP_FOR_EACH_1 (table_id, 255, tif->next) { |
4950 | ofpbuf_put(reply, &table_id, 1); | |
4951 | } | |
c5562271 | 4952 | ofpprop_end(reply, start_ofs); |
3c4e10fb BP |
4953 | |
4954 | put_table_action_features(reply, &tif->write, | |
4955 | OFPTFPT13_WRITE_ACTIONS, | |
4956 | OFPTFPT13_WRITE_SETFIELD, miss_offset, version); | |
4957 | put_table_action_features(reply, &tif->apply, | |
4958 | OFPTFPT13_APPLY_ACTIONS, | |
4959 | OFPTFPT13_APPLY_SETFIELD, miss_offset, version); | |
4960 | } | |
4961 | ||
4962 | void | |
4963 | ofputil_append_table_features_reply(const struct ofputil_table_features *tf, | |
ca6ba700 | 4964 | struct ovs_list *replies) |
3c4e10fb BP |
4965 | { |
4966 | struct ofpbuf *reply = ofpbuf_from_list(list_back(replies)); | |
4967 | enum ofp_version version = ofpmp_version(replies); | |
6fd6ed71 | 4968 | size_t start_ofs = reply->size; |
3c4e10fb BP |
4969 | struct ofp13_table_features *otf; |
4970 | ||
4971 | otf = ofpbuf_put_zeros(reply, sizeof *otf); | |
4972 | otf->table_id = tf->table_id; | |
4973 | ovs_strlcpy(otf->name, tf->name, sizeof otf->name); | |
4974 | otf->metadata_match = tf->metadata_match; | |
4975 | otf->metadata_write = tf->metadata_write; | |
82c22d34 BP |
4976 | if (version >= OFP14_VERSION) { |
4977 | if (tf->supports_eviction) { | |
4978 | otf->capabilities |= htonl(OFPTC14_EVICTION); | |
4979 | } | |
4980 | if (tf->supports_vacancy_events) { | |
4981 | otf->capabilities |= htonl(OFPTC14_VACANCY_EVENTS); | |
4982 | } | |
4983 | } | |
3c4e10fb BP |
4984 | otf->max_entries = htonl(tf->max_entries); |
4985 | ||
4986 | put_table_instruction_features(reply, &tf->nonmiss, 0, version); | |
4987 | put_table_instruction_features(reply, &tf->miss, 1, version); | |
4988 | ||
4989 | put_fields_property(reply, &tf->match, &tf->mask, | |
4990 | OFPTFPT13_MATCH, version); | |
4991 | put_fields_property(reply, &tf->wildcard, NULL, | |
4992 | OFPTFPT13_WILDCARDS, version); | |
4993 | ||
4994 | otf = ofpbuf_at_assert(reply, start_ofs, sizeof *otf); | |
6fd6ed71 | 4995 | otf->length = htons(reply->size - start_ofs); |
3c4e10fb BP |
4996 | ofpmp_postappend(replies, start_ofs); |
4997 | } | |
4998 | ||
bab86012 SJ |
4999 | static enum ofperr |
5000 | parse_table_desc_vacancy_property(struct ofpbuf *property, | |
5001 | struct ofputil_table_desc *td) | |
5002 | { | |
5003 | struct ofp14_table_mod_prop_vacancy *otv = property->data; | |
5004 | ||
5005 | if (property->size != sizeof *otv) { | |
5006 | return OFPERR_OFPBPC_BAD_LEN; | |
5007 | } | |
5008 | ||
5009 | td->table_vacancy.vacancy_down = otv->vacancy_down; | |
5010 | td->table_vacancy.vacancy_up = otv->vacancy_up; | |
5011 | td->table_vacancy.vacancy = otv->vacancy; | |
5012 | return 0; | |
5013 | } | |
5014 | ||
03c72922 BP |
5015 | /* Decodes the next OpenFlow "table desc" message (of possibly several) from |
5016 | * 'msg' into an abstract form in '*td'. Returns 0 if successful, EOF if the | |
5017 | * last "table desc" in 'msg' was already decoded, otherwise an OFPERR_* | |
5018 | * value. */ | |
5019 | int | |
5020 | ofputil_decode_table_desc(struct ofpbuf *msg, | |
5021 | struct ofputil_table_desc *td, | |
5022 | enum ofp_version version) | |
5023 | { | |
5024 | struct ofp14_table_desc *otd; | |
5025 | struct ofpbuf properties; | |
5026 | size_t length; | |
5027 | ||
5028 | memset(td, 0, sizeof *td); | |
5029 | ||
5030 | if (!msg->header) { | |
5031 | ofpraw_pull_assert(msg); | |
5032 | } | |
5033 | ||
5034 | if (!msg->size) { | |
5035 | return EOF; | |
5036 | } | |
5037 | ||
5038 | otd = ofpbuf_try_pull(msg, sizeof *otd); | |
5039 | if (!otd) { | |
5040 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFP14_TABLE_DESC reply has %"PRIu32" " | |
5041 | "leftover bytes at end", msg->size); | |
5042 | return OFPERR_OFPBRC_BAD_LEN; | |
5043 | } | |
5044 | ||
5045 | td->table_id = otd->table_id; | |
5046 | length = ntohs(otd->length); | |
5047 | if (length < sizeof *otd || length - sizeof *otd > msg->size) { | |
5048 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFP14_TABLE_DESC reply claims invalid " | |
5049 | "length %"PRIuSIZE, length); | |
5050 | return OFPERR_OFPBRC_BAD_LEN; | |
5051 | } | |
5052 | length -= sizeof *otd; | |
5053 | ofpbuf_use_const(&properties, ofpbuf_pull(msg, length), length); | |
5054 | ||
5055 | td->eviction = ofputil_decode_table_eviction(otd->config, version); | |
bab86012 | 5056 | td->vacancy = ofputil_decode_table_vacancy(otd->config, version); |
03c72922 BP |
5057 | td->eviction_flags = UINT32_MAX; |
5058 | ||
5059 | while (properties.size > 0) { | |
5060 | struct ofpbuf payload; | |
5061 | enum ofperr error; | |
34a543e3 | 5062 | uint64_t type; |
03c72922 | 5063 | |
c5562271 | 5064 | error = ofpprop_pull(&properties, &payload, &type); |
03c72922 BP |
5065 | if (error) { |
5066 | return error; | |
5067 | } | |
5068 | ||
5069 | switch (type) { | |
5070 | case OFPTMPT14_EVICTION: | |
b611d3ac | 5071 | error = ofpprop_parse_u32(&payload, &td->eviction_flags); |
03c72922 BP |
5072 | break; |
5073 | ||
bab86012 SJ |
5074 | case OFPTMPT14_VACANCY: |
5075 | error = parse_table_desc_vacancy_property(&payload, td); | |
5076 | break; | |
5077 | ||
03c72922 | 5078 | default: |
34a543e3 | 5079 | error = OFPPROP_UNKNOWN(true, "table_desc", type); |
03c72922 BP |
5080 | break; |
5081 | } | |
5082 | ||
5083 | if (error) { | |
5084 | return error; | |
5085 | } | |
5086 | } | |
5087 | ||
5088 | return 0; | |
5089 | } | |
5090 | ||
5091 | /* Encodes and returns a request to obtain description of tables of a switch. | |
5092 | * The message is encoded for OpenFlow version 'ofp_version'. */ | |
5093 | struct ofpbuf * | |
5094 | ofputil_encode_table_desc_request(enum ofp_version ofp_version) | |
5095 | { | |
5096 | struct ofpbuf *request = NULL; | |
5097 | ||
5098 | if (ofp_version >= OFP14_VERSION) { | |
5099 | request = ofpraw_alloc(OFPRAW_OFPST14_TABLE_DESC_REQUEST, | |
5100 | ofp_version, 0); | |
5101 | } else { | |
5102 | ovs_fatal(0, "dump-table-desc needs OpenFlow 1.4 or later " | |
5103 | "(\'-O OpenFlow14\')"); | |
5104 | } | |
5105 | ||
5106 | return request; | |
5107 | } | |
5108 | ||
5109 | /* Function to append Table desc information in a reply list. */ | |
5110 | void | |
5111 | ofputil_append_table_desc_reply(const struct ofputil_table_desc *td, | |
5112 | struct ovs_list *replies, | |
5113 | enum ofp_version version) | |
5114 | { | |
5115 | struct ofpbuf *reply = ofpbuf_from_list(list_back(replies)); | |
5116 | size_t start_otd; | |
5117 | struct ofp14_table_desc *otd; | |
5118 | ||
5119 | start_otd = reply->size; | |
5120 | ofpbuf_put_zeros(reply, sizeof *otd); | |
5121 | if (td->eviction_flags != UINT32_MAX) { | |
b611d3ac | 5122 | ofpprop_put_u32(reply, OFPTMPT14_EVICTION, td->eviction_flags); |
03c72922 | 5123 | } |
bab86012 SJ |
5124 | if (td->vacancy == OFPUTIL_TABLE_VACANCY_ON) { |
5125 | struct ofp14_table_mod_prop_vacancy *otv; | |
5126 | ||
303721ee | 5127 | otv = ofpprop_put_zeros(reply, OFPTMPT14_VACANCY, sizeof *otv); |
bab86012 SJ |
5128 | otv->vacancy_down = td->table_vacancy.vacancy_down; |
5129 | otv->vacancy_up = td->table_vacancy.vacancy_up; | |
5130 | otv->vacancy = td->table_vacancy.vacancy; | |
5131 | } | |
03c72922 BP |
5132 | |
5133 | otd = ofpbuf_at_assert(reply, start_otd, sizeof *otd); | |
5134 | otd->length = htons(reply->size - start_otd); | |
5135 | otd->table_id = td->table_id; | |
5136 | otd->config = ofputil_encode_table_config(OFPUTIL_TABLE_MISS_DEFAULT, | |
de7d3c07 SJ |
5137 | td->eviction, td->vacancy, |
5138 | version); | |
03c72922 BP |
5139 | ofpmp_postappend(replies, start_otd); |
5140 | } | |
5141 | ||
de7d3c07 SJ |
5142 | /* This function parses Vacancy property, and decodes the |
5143 | * ofp14_table_mod_prop_vacancy in ofputil_table_mod. | |
5144 | * Returns OFPERR_OFPBPC_BAD_VALUE error code when vacancy_down is | |
5145 | * greater than vacancy_up and also when current vacancy has non-zero | |
5146 | * value. Returns 0 on success. */ | |
5147 | static enum ofperr | |
5148 | parse_table_mod_vacancy_property(struct ofpbuf *property, | |
5149 | struct ofputil_table_mod *tm) | |
5150 | { | |
5151 | struct ofp14_table_mod_prop_vacancy *otv = property->data; | |
5152 | ||
5153 | if (property->size != sizeof *otv) { | |
5154 | return OFPERR_OFPBPC_BAD_LEN; | |
5155 | } | |
5156 | tm->table_vacancy.vacancy_down = otv->vacancy_down; | |
5157 | tm->table_vacancy.vacancy_up = otv->vacancy_up; | |
5158 | if (tm->table_vacancy.vacancy_down > tm->table_vacancy.vacancy_up) { | |
c5562271 BP |
5159 | OFPPROP_LOG(&bad_ofmsg_rl, false, |
5160 | "Value of vacancy_down is greater than vacancy_up"); | |
de7d3c07 SJ |
5161 | return OFPERR_OFPBPC_BAD_VALUE; |
5162 | } | |
5163 | if (tm->table_vacancy.vacancy_down > 100 || | |
5164 | tm->table_vacancy.vacancy_up > 100) { | |
c5562271 BP |
5165 | OFPPROP_LOG(&bad_ofmsg_rl, false, "Vacancy threshold percentage " |
5166 | "should not be greater than 100"); | |
de7d3c07 SJ |
5167 | return OFPERR_OFPBPC_BAD_VALUE; |
5168 | } | |
5169 | tm->table_vacancy.vacancy = otv->vacancy; | |
5170 | if (tm->table_vacancy.vacancy) { | |
c5562271 BP |
5171 | OFPPROP_LOG(&bad_ofmsg_rl, false, |
5172 | "Vacancy value should be zero for table-mod messages"); | |
de7d3c07 SJ |
5173 | return OFPERR_OFPBPC_BAD_VALUE; |
5174 | } | |
5175 | return 0; | |
5176 | } | |
5177 | ||
5178 | /* Given 'config', taken from an OpenFlow 'version' message that specifies | |
5179 | * table configuration (a table mod, table stats, or table features message), | |
5180 | * returns the table vacancy configuration that it specifies. | |
5181 | * | |
5182 | * Only OpenFlow 1.4 and later specify table vacancy configuration this way, | |
5183 | * so for other 'version' this function always returns | |
5184 | * OFPUTIL_TABLE_VACANCY_DEFAULT. */ | |
5185 | static enum ofputil_table_vacancy | |
5186 | ofputil_decode_table_vacancy(ovs_be32 config, enum ofp_version version) | |
5187 | { | |
5188 | return (version < OFP14_VERSION ? OFPUTIL_TABLE_VACANCY_DEFAULT | |
5189 | : config & htonl(OFPTC14_VACANCY_EVENTS) ? OFPUTIL_TABLE_VACANCY_ON | |
5190 | : OFPUTIL_TABLE_VACANCY_OFF); | |
5191 | } | |
5192 | ||
3c1bb396 BP |
5193 | /* Given 'config', taken from an OpenFlow 'version' message that specifies |
5194 | * table configuration (a table mod, table stats, or table features message), | |
82c22d34 BP |
5195 | * returns the table eviction configuration that it specifies. |
5196 | * | |
5197 | * Only OpenFlow 1.4 and later specify table eviction configuration this way, | |
5198 | * so for other 'version' values this function always returns | |
5199 | * OFPUTIL_TABLE_EVICTION_DEFAULT. */ | |
5200 | static enum ofputil_table_eviction | |
5201 | ofputil_decode_table_eviction(ovs_be32 config, enum ofp_version version) | |
5202 | { | |
5203 | return (version < OFP14_VERSION ? OFPUTIL_TABLE_EVICTION_DEFAULT | |
5204 | : config & htonl(OFPTC14_EVICTION) ? OFPUTIL_TABLE_EVICTION_ON | |
5205 | : OFPUTIL_TABLE_EVICTION_OFF); | |
5206 | } | |
5207 | ||
5208 | /* Returns a bitmap of OFPTC* values suitable for 'config' fields in various | |
5209 | * OpenFlow messages of the given 'version', based on the provided 'miss' and | |
5210 | * 'eviction' values. */ | |
5211 | static ovs_be32 | |
5212 | ofputil_encode_table_config(enum ofputil_table_miss miss, | |
5213 | enum ofputil_table_eviction eviction, | |
de7d3c07 | 5214 | enum ofputil_table_vacancy vacancy, |
82c22d34 BP |
5215 | enum ofp_version version) |
5216 | { | |
de7d3c07 | 5217 | uint32_t config = 0; |
82c22d34 BP |
5218 | /* See the section "OFPTC_* Table Configuration" in DESIGN.md for more |
5219 | * information on the crazy evolution of this field. */ | |
5220 | switch (version) { | |
5221 | case OFP10_VERSION: | |
5222 | /* OpenFlow 1.0 didn't have such a field, any value ought to do. */ | |
5223 | return htonl(0); | |
5224 | ||
5225 | case OFP11_VERSION: | |
5226 | case OFP12_VERSION: | |
5227 | /* OpenFlow 1.1 and 1.2 define only OFPTC11_TABLE_MISS_*. */ | |
5228 | switch (miss) { | |
5229 | case OFPUTIL_TABLE_MISS_DEFAULT: | |
5230 | /* Really this shouldn't be used for encoding (the caller should | |
5231 | * provide a specific value) but I can't imagine that defaulting to | |
5232 | * the fall-through case here will hurt. */ | |
5233 | case OFPUTIL_TABLE_MISS_CONTROLLER: | |
5234 | default: | |
5235 | return htonl(OFPTC11_TABLE_MISS_CONTROLLER); | |
5236 | case OFPUTIL_TABLE_MISS_CONTINUE: | |
5237 | return htonl(OFPTC11_TABLE_MISS_CONTINUE); | |
5238 | case OFPUTIL_TABLE_MISS_DROP: | |
5239 | return htonl(OFPTC11_TABLE_MISS_DROP); | |
5240 | } | |
5241 | OVS_NOT_REACHED(); | |
5242 | ||
5243 | case OFP13_VERSION: | |
5244 | /* OpenFlow 1.3 removed OFPTC11_TABLE_MISS_* and didn't define any new | |
5245 | * flags, so this is correct. */ | |
5246 | return htonl(0); | |
5247 | ||
5248 | case OFP14_VERSION: | |
5249 | case OFP15_VERSION: | |
de7d3c07 SJ |
5250 | /* OpenFlow 1.4 introduced OFPTC14_EVICTION and |
5251 | * OFPTC14_VACANCY_EVENTS. */ | |
5252 | if (eviction == OFPUTIL_TABLE_EVICTION_ON) { | |
5253 | config |= OFPTC14_EVICTION; | |
5254 | } | |
5255 | if (vacancy == OFPUTIL_TABLE_VACANCY_ON) { | |
5256 | config |= OFPTC14_VACANCY_EVENTS; | |
5257 | } | |
5258 | return htonl(config); | |
82c22d34 BP |
5259 | } |
5260 | ||
5261 | OVS_NOT_REACHED(); | |
5262 | } | |
5263 | ||
5264 | /* Given 'config', taken from an OpenFlow 'version' message that specifies | |
5265 | * table configuration (a table mod, table stats, or table features message), | |
5266 | * returns the table miss configuration that it specifies. | |
5267 | * | |
5268 | * Only OpenFlow 1.1 and 1.2 specify table miss configurations this way, so for | |
5269 | * other 'version' values this function always returns | |
5270 | * OFPUTIL_TABLE_MISS_DEFAULT. */ | |
3c1bb396 | 5271 | static enum ofputil_table_miss |
82c22d34 | 5272 | ofputil_decode_table_miss(ovs_be32 config_, enum ofp_version version) |
3c1bb396 BP |
5273 | { |
5274 | uint32_t config = ntohl(config_); | |
5275 | ||
82c22d34 | 5276 | if (version == OFP11_VERSION || version == OFP12_VERSION) { |
3c1bb396 BP |
5277 | switch (config & OFPTC11_TABLE_MISS_MASK) { |
5278 | case OFPTC11_TABLE_MISS_CONTROLLER: | |
5279 | return OFPUTIL_TABLE_MISS_CONTROLLER; | |
5280 | ||
5281 | case OFPTC11_TABLE_MISS_CONTINUE: | |
5282 | return OFPUTIL_TABLE_MISS_CONTINUE; | |
5283 | ||
5284 | case OFPTC11_TABLE_MISS_DROP: | |
5285 | return OFPUTIL_TABLE_MISS_DROP; | |
5286 | ||
5287 | default: | |
5288 | VLOG_WARN_RL(&bad_ofmsg_rl, "bad table miss config %d", config); | |
5289 | return OFPUTIL_TABLE_MISS_CONTROLLER; | |
5290 | } | |
5291 | } else { | |
5292 | return OFPUTIL_TABLE_MISS_DEFAULT; | |
5293 | } | |
5294 | } | |
5295 | ||
918f2b82 AZ |
5296 | /* Decodes the OpenFlow "table mod" message in '*oh' into an abstract form in |
5297 | * '*pm'. Returns 0 if successful, otherwise an OFPERR_* value. */ | |
5298 | enum ofperr | |
5299 | ofputil_decode_table_mod(const struct ofp_header *oh, | |
5300 | struct ofputil_table_mod *pm) | |
5301 | { | |
5302 | enum ofpraw raw; | |
5303 | struct ofpbuf b; | |
5304 | ||
82c22d34 BP |
5305 | memset(pm, 0, sizeof *pm); |
5306 | pm->miss = OFPUTIL_TABLE_MISS_DEFAULT; | |
5307 | pm->eviction = OFPUTIL_TABLE_EVICTION_DEFAULT; | |
5308 | pm->eviction_flags = UINT32_MAX; | |
de7d3c07 | 5309 | pm->vacancy = OFPUTIL_TABLE_VACANCY_DEFAULT; |
918f2b82 AZ |
5310 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
5311 | raw = ofpraw_pull_assert(&b); | |
5312 | ||
5313 | if (raw == OFPRAW_OFPT11_TABLE_MOD) { | |
6fd6ed71 | 5314 | const struct ofp11_table_mod *otm = b.data; |
918f2b82 AZ |
5315 | |
5316 | pm->table_id = otm->table_id; | |
82c22d34 | 5317 | pm->miss = ofputil_decode_table_miss(otm->config, oh->version); |
37ab26e8 BP |
5318 | } else if (raw == OFPRAW_OFPT14_TABLE_MOD) { |
5319 | const struct ofp14_table_mod *otm = ofpbuf_pull(&b, sizeof *otm); | |
5320 | ||
5321 | pm->table_id = otm->table_id; | |
82c22d34 BP |
5322 | pm->miss = ofputil_decode_table_miss(otm->config, oh->version); |
5323 | pm->eviction = ofputil_decode_table_eviction(otm->config, oh->version); | |
de7d3c07 | 5324 | pm->vacancy = ofputil_decode_table_vacancy(otm->config, oh->version); |
82c22d34 BP |
5325 | while (b.size > 0) { |
5326 | struct ofpbuf property; | |
5327 | enum ofperr error; | |
34a543e3 | 5328 | uint64_t type; |
82c22d34 | 5329 | |
c5562271 | 5330 | error = ofpprop_pull(&b, &property, &type); |
82c22d34 BP |
5331 | if (error) { |
5332 | return error; | |
5333 | } | |
5334 | ||
5335 | switch (type) { | |
5336 | case OFPTMPT14_EVICTION: | |
b611d3ac | 5337 | error = ofpprop_parse_u32(&property, &pm->eviction); |
82c22d34 BP |
5338 | break; |
5339 | ||
de7d3c07 SJ |
5340 | case OFPTMPT14_VACANCY: |
5341 | error = parse_table_mod_vacancy_property(&property, pm); | |
5342 | break; | |
5343 | ||
82c22d34 BP |
5344 | default: |
5345 | error = OFPERR_OFPBRC_BAD_TYPE; | |
5346 | break; | |
5347 | } | |
5348 | ||
5349 | if (error) { | |
5350 | return error; | |
5351 | } | |
5352 | } | |
918f2b82 AZ |
5353 | } else { |
5354 | return OFPERR_OFPBRC_BAD_TYPE; | |
5355 | } | |
5356 | ||
5357 | return 0; | |
5358 | } | |
5359 | ||
82c22d34 BP |
5360 | /* Converts the abstract form of a "table mod" message in '*tm' into an |
5361 | * OpenFlow message suitable for 'protocol', and returns that encoded form in a | |
5362 | * buffer owned by the caller. */ | |
918f2b82 | 5363 | struct ofpbuf * |
82c22d34 | 5364 | ofputil_encode_table_mod(const struct ofputil_table_mod *tm, |
918f2b82 AZ |
5365 | enum ofputil_protocol protocol) |
5366 | { | |
5367 | enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol); | |
5368 | struct ofpbuf *b; | |
5369 | ||
5370 | switch (ofp_version) { | |
5371 | case OFP10_VERSION: { | |
5372 | ovs_fatal(0, "table mod needs OpenFlow 1.1 or later " | |
5373 | "(\'-O OpenFlow11\')"); | |
5374 | break; | |
5375 | } | |
5376 | case OFP11_VERSION: | |
5377 | case OFP12_VERSION: | |
5378 | case OFP13_VERSION: { | |
5379 | struct ofp11_table_mod *otm; | |
2e3fa633 | 5380 | |
918f2b82 AZ |
5381 | b = ofpraw_alloc(OFPRAW_OFPT11_TABLE_MOD, ofp_version, 0); |
5382 | otm = ofpbuf_put_zeros(b, sizeof *otm); | |
82c22d34 BP |
5383 | otm->table_id = tm->table_id; |
5384 | otm->config = ofputil_encode_table_config(tm->miss, tm->eviction, | |
de7d3c07 | 5385 | tm->vacancy, ofp_version); |
918f2b82 AZ |
5386 | break; |
5387 | } | |
42dccab5 BP |
5388 | case OFP14_VERSION: |
5389 | case OFP15_VERSION: { | |
37ab26e8 BP |
5390 | struct ofp14_table_mod *otm; |
5391 | ||
5392 | b = ofpraw_alloc(OFPRAW_OFPT14_TABLE_MOD, ofp_version, 0); | |
5393 | otm = ofpbuf_put_zeros(b, sizeof *otm); | |
82c22d34 BP |
5394 | otm->table_id = tm->table_id; |
5395 | otm->config = ofputil_encode_table_config(tm->miss, tm->eviction, | |
de7d3c07 | 5396 | tm->vacancy, ofp_version); |
82c22d34 BP |
5397 | |
5398 | if (tm->eviction_flags != UINT32_MAX) { | |
b611d3ac | 5399 | ofpprop_put_u32(b, OFPTMPT14_EVICTION, tm->eviction_flags); |
82c22d34 | 5400 | } |
de7d3c07 | 5401 | if (tm->vacancy == OFPUTIL_TABLE_VACANCY_ON) { |
303721ee BP |
5402 | struct ofp14_table_mod_prop_vacancy *otv; |
5403 | ||
5404 | otv = ofpprop_put_zeros(b, OFPTMPT14_VACANCY, sizeof *otv); | |
de7d3c07 SJ |
5405 | otv->vacancy_down = tm->table_vacancy.vacancy_down; |
5406 | otv->vacancy_up = tm->table_vacancy.vacancy_up; | |
5407 | } | |
c37c0382 | 5408 | break; |
37ab26e8 | 5409 | } |
2e3fa633 | 5410 | default: |
428b2edd | 5411 | OVS_NOT_REACHED(); |
9e1fd49b BP |
5412 | } |
5413 | ||
5414 | return b; | |
5415 | } | |
2b07c8b1 | 5416 | \f |
6ea4776b JR |
5417 | /* ofputil_role_request */ |
5418 | ||
5419 | /* Decodes the OpenFlow "role request" or "role reply" message in '*oh' into | |
5420 | * an abstract form in '*rr'. Returns 0 if successful, otherwise an | |
5421 | * OFPERR_* value. */ | |
5422 | enum ofperr | |
5423 | ofputil_decode_role_message(const struct ofp_header *oh, | |
5424 | struct ofputil_role_request *rr) | |
5425 | { | |
6ea4776b JR |
5426 | struct ofpbuf b; |
5427 | enum ofpraw raw; | |
5428 | ||
6ea4776b JR |
5429 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); |
5430 | raw = ofpraw_pull_assert(&b); | |
5431 | ||
f4f1ea7e BP |
5432 | if (raw == OFPRAW_OFPT12_ROLE_REQUEST || |
5433 | raw == OFPRAW_OFPT12_ROLE_REPLY) { | |
6fd6ed71 | 5434 | const struct ofp12_role_request *orr = b.msg; |
6ea4776b | 5435 | |
f4f1ea7e BP |
5436 | if (orr->role != htonl(OFPCR12_ROLE_NOCHANGE) && |
5437 | orr->role != htonl(OFPCR12_ROLE_EQUAL) && | |
5438 | orr->role != htonl(OFPCR12_ROLE_MASTER) && | |
5439 | orr->role != htonl(OFPCR12_ROLE_SLAVE)) { | |
5440 | return OFPERR_OFPRRFC_BAD_ROLE; | |
6ea4776b JR |
5441 | } |
5442 | ||
f4f1ea7e | 5443 | rr->role = ntohl(orr->role); |
147cc9d3 BP |
5444 | if (raw == OFPRAW_OFPT12_ROLE_REQUEST |
5445 | ? orr->role == htonl(OFPCR12_ROLE_NOCHANGE) | |
b8266395 | 5446 | : orr->generation_id == OVS_BE64_MAX) { |
f4f1ea7e BP |
5447 | rr->have_generation_id = false; |
5448 | rr->generation_id = 0; | |
5449 | } else { | |
5450 | rr->have_generation_id = true; | |
5451 | rr->generation_id = ntohll(orr->generation_id); | |
5452 | } | |
5453 | } else if (raw == OFPRAW_NXT_ROLE_REQUEST || | |
5454 | raw == OFPRAW_NXT_ROLE_REPLY) { | |
6fd6ed71 | 5455 | const struct nx_role_request *nrr = b.msg; |
f4f1ea7e BP |
5456 | |
5457 | BUILD_ASSERT(NX_ROLE_OTHER + 1 == OFPCR12_ROLE_EQUAL); | |
5458 | BUILD_ASSERT(NX_ROLE_MASTER + 1 == OFPCR12_ROLE_MASTER); | |
5459 | BUILD_ASSERT(NX_ROLE_SLAVE + 1 == OFPCR12_ROLE_SLAVE); | |
5460 | ||
5461 | if (nrr->role != htonl(NX_ROLE_OTHER) && | |
5462 | nrr->role != htonl(NX_ROLE_MASTER) && | |
5463 | nrr->role != htonl(NX_ROLE_SLAVE)) { | |
5464 | return OFPERR_OFPRRFC_BAD_ROLE; | |
5465 | } | |
6ea4776b | 5466 | |
f4f1ea7e BP |
5467 | rr->role = ntohl(nrr->role) + 1; |
5468 | rr->have_generation_id = false; | |
5469 | rr->generation_id = 0; | |
5470 | } else { | |
428b2edd | 5471 | OVS_NOT_REACHED(); |
6ea4776b JR |
5472 | } |
5473 | ||
6ea4776b JR |
5474 | return 0; |
5475 | } | |
5476 | ||
5477 | /* Returns an encoded form of a role reply suitable for the "request" in a | |
5478 | * buffer owned by the caller. */ | |
5479 | struct ofpbuf * | |
5480 | ofputil_encode_role_reply(const struct ofp_header *request, | |
f4f1ea7e | 5481 | const struct ofputil_role_request *rr) |
6ea4776b | 5482 | { |
6ea4776b | 5483 | struct ofpbuf *buf; |
6ea4776b JR |
5484 | enum ofpraw raw; |
5485 | ||
f4f1ea7e | 5486 | raw = ofpraw_decode_assert(request); |
6ea4776b | 5487 | if (raw == OFPRAW_OFPT12_ROLE_REQUEST) { |
f4f1ea7e | 5488 | struct ofp12_role_request *orr; |
6ea4776b | 5489 | |
f4f1ea7e BP |
5490 | buf = ofpraw_alloc_reply(OFPRAW_OFPT12_ROLE_REPLY, request, 0); |
5491 | orr = ofpbuf_put_zeros(buf, sizeof *orr); | |
6ea4776b | 5492 | |
147cc9d3 BP |
5493 | orr->role = htonl(rr->role); |
5494 | orr->generation_id = htonll(rr->have_generation_id | |
5495 | ? rr->generation_id | |
5496 | : UINT64_MAX); | |
f4f1ea7e BP |
5497 | } else if (raw == OFPRAW_NXT_ROLE_REQUEST) { |
5498 | struct nx_role_request *nrr; | |
5499 | ||
5500 | BUILD_ASSERT(NX_ROLE_OTHER == OFPCR12_ROLE_EQUAL - 1); | |
5501 | BUILD_ASSERT(NX_ROLE_MASTER == OFPCR12_ROLE_MASTER - 1); | |
5502 | BUILD_ASSERT(NX_ROLE_SLAVE == OFPCR12_ROLE_SLAVE - 1); | |
5503 | ||
5504 | buf = ofpraw_alloc_reply(OFPRAW_NXT_ROLE_REPLY, request, 0); | |
5505 | nrr = ofpbuf_put_zeros(buf, sizeof *nrr); | |
5506 | nrr->role = htonl(rr->role - 1); | |
5507 | } else { | |
428b2edd | 5508 | OVS_NOT_REACHED(); |
6ea4776b | 5509 | } |
6ea4776b JR |
5510 | |
5511 | return buf; | |
5512 | } | |
5513 | \f | |
6751a4b4 BP |
5514 | /* Encodes "role status" message 'status' for sending in the given |
5515 | * 'protocol'. Returns the role status message, if 'protocol' supports them, | |
5516 | * otherwise a null pointer. */ | |
00467f73 AC |
5517 | struct ofpbuf * |
5518 | ofputil_encode_role_status(const struct ofputil_role_status *status, | |
5519 | enum ofputil_protocol protocol) | |
5520 | { | |
00467f73 | 5521 | enum ofp_version version; |
00467f73 AC |
5522 | |
5523 | version = ofputil_protocol_to_ofp_version(protocol); | |
6751a4b4 BP |
5524 | if (version >= OFP14_VERSION) { |
5525 | struct ofp14_role_status *rstatus; | |
5526 | struct ofpbuf *buf; | |
5527 | ||
5528 | buf = ofpraw_alloc_xid(OFPRAW_OFPT14_ROLE_STATUS, version, htonl(0), | |
5529 | 0); | |
5530 | rstatus = ofpbuf_put_zeros(buf, sizeof *rstatus); | |
5531 | rstatus->role = htonl(status->role); | |
5532 | rstatus->reason = status->reason; | |
5533 | rstatus->generation_id = htonll(status->generation_id); | |
5534 | ||
5535 | return buf; | |
5536 | } else { | |
5537 | return NULL; | |
5538 | } | |
00467f73 AC |
5539 | } |
5540 | ||
5541 | enum ofperr | |
5542 | ofputil_decode_role_status(const struct ofp_header *oh, | |
5543 | struct ofputil_role_status *rs) | |
5544 | { | |
5545 | struct ofpbuf b; | |
5546 | enum ofpraw raw; | |
5547 | const struct ofp14_role_status *r; | |
5548 | ||
5549 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
5550 | raw = ofpraw_pull_assert(&b); | |
5551 | ovs_assert(raw == OFPRAW_OFPT14_ROLE_STATUS); | |
5552 | ||
6fd6ed71 | 5553 | r = b.msg; |
00467f73 AC |
5554 | if (r->role != htonl(OFPCR12_ROLE_NOCHANGE) && |
5555 | r->role != htonl(OFPCR12_ROLE_EQUAL) && | |
5556 | r->role != htonl(OFPCR12_ROLE_MASTER) && | |
5557 | r->role != htonl(OFPCR12_ROLE_SLAVE)) { | |
5558 | return OFPERR_OFPRRFC_BAD_ROLE; | |
5559 | } | |
5560 | ||
5561 | rs->role = ntohl(r->role); | |
5562 | rs->generation_id = ntohll(r->generation_id); | |
5563 | rs->reason = r->reason; | |
5564 | ||
5565 | return 0; | |
5566 | } | |
5567 | ||
3c35db62 NR |
5568 | /* Encodes 'rf' according to 'protocol', and returns the encoded message. |
5569 | * 'protocol' must be for OpenFlow 1.4 or later. */ | |
5570 | struct ofpbuf * | |
5571 | ofputil_encode_requestforward(const struct ofputil_requestforward *rf, | |
5572 | enum ofputil_protocol protocol) | |
5573 | { | |
5574 | enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol); | |
5575 | struct ofpbuf *inner; | |
5576 | ||
5577 | switch (rf->reason) { | |
5578 | case OFPRFR_GROUP_MOD: | |
5579 | inner = ofputil_encode_group_mod(ofp_version, rf->group_mod); | |
5580 | break; | |
5581 | ||
5582 | case OFPRFR_METER_MOD: | |
5583 | inner = ofputil_encode_meter_mod(ofp_version, rf->meter_mod); | |
5584 | break; | |
5585 | ||
d18cc1ee | 5586 | case OFPRFR_N_REASONS: |
3c35db62 NR |
5587 | default: |
5588 | OVS_NOT_REACHED(); | |
5589 | } | |
5590 | ||
5591 | struct ofp_header *inner_oh = inner->data; | |
5592 | inner_oh->xid = rf->xid; | |
5593 | inner_oh->length = htons(inner->size); | |
5594 | ||
5595 | struct ofpbuf *outer = ofpraw_alloc_xid(OFPRAW_OFPT14_REQUESTFORWARD, | |
5596 | ofp_version, htonl(0), | |
5597 | inner->size); | |
5598 | ofpbuf_put(outer, inner->data, inner->size); | |
5599 | ofpbuf_delete(inner); | |
5600 | ||
5601 | return outer; | |
5602 | } | |
5603 | ||
5604 | /* Decodes OFPT_REQUESTFORWARD message 'outer'. On success, puts the decoded | |
5605 | * form into '*rf' and returns 0, and the caller is later responsible for | |
5606 | * freeing the content of 'rf', with ofputil_destroy_requestforward(rf). On | |
5607 | * failure, returns an ofperr and '*rf' is indeterminate. */ | |
5608 | enum ofperr | |
5609 | ofputil_decode_requestforward(const struct ofp_header *outer, | |
5610 | struct ofputil_requestforward *rf) | |
5611 | { | |
5612 | struct ofpbuf b; | |
5613 | enum ofperr error; | |
5614 | ||
5615 | ofpbuf_use_const(&b, outer, ntohs(outer->length)); | |
5616 | ||
5617 | /* Skip past outer message. */ | |
5618 | enum ofpraw outer_raw = ofpraw_pull_assert(&b); | |
5619 | ovs_assert(outer_raw == OFPRAW_OFPT14_REQUESTFORWARD); | |
5620 | ||
5621 | /* Validate inner message. */ | |
5622 | if (b.size < sizeof(struct ofp_header)) { | |
5623 | return OFPERR_OFPBFC_MSG_BAD_LEN; | |
5624 | } | |
5625 | const struct ofp_header *inner = b.data; | |
5626 | unsigned int inner_len = ntohs(inner->length); | |
5627 | if (inner_len < sizeof(struct ofp_header) || inner_len > b.size) { | |
5628 | return OFPERR_OFPBFC_MSG_BAD_LEN; | |
5629 | } | |
5630 | if (inner->version != outer->version) { | |
5631 | return OFPERR_OFPBRC_BAD_VERSION; | |
5632 | } | |
5633 | ||
5634 | /* Parse inner message. */ | |
5635 | enum ofptype type; | |
5636 | error = ofptype_decode(&type, inner); | |
5637 | if (error) { | |
5638 | return error; | |
5639 | } | |
5640 | ||
5641 | rf->xid = inner->xid; | |
5642 | if (type == OFPTYPE_GROUP_MOD) { | |
5643 | rf->reason = OFPRFR_GROUP_MOD; | |
5644 | rf->group_mod = xmalloc(sizeof *rf->group_mod); | |
5645 | error = ofputil_decode_group_mod(inner, rf->group_mod); | |
5646 | if (error) { | |
5647 | free(rf->group_mod); | |
5648 | return error; | |
5649 | } | |
5650 | } else if (type == OFPTYPE_METER_MOD) { | |
5651 | rf->reason = OFPRFR_METER_MOD; | |
5652 | rf->meter_mod = xmalloc(sizeof *rf->meter_mod); | |
5653 | ofpbuf_init(&rf->bands, 64); | |
5654 | error = ofputil_decode_meter_mod(inner, rf->meter_mod, &rf->bands); | |
5655 | if (error) { | |
5656 | free(rf->meter_mod); | |
5657 | ofpbuf_uninit(&rf->bands); | |
5658 | return error; | |
5659 | } | |
5660 | } else { | |
5661 | return OFPERR_OFPBFC_MSG_UNSUP; | |
5662 | } | |
5663 | ||
5664 | return 0; | |
5665 | } | |
5666 | ||
5667 | /* Frees the content of 'rf', which should have been initialized through a | |
5668 | * successful call to ofputil_decode_requestforward(). */ | |
5669 | void | |
5670 | ofputil_destroy_requestforward(struct ofputil_requestforward *rf) | |
5671 | { | |
5672 | if (!rf) { | |
5673 | return; | |
5674 | } | |
5675 | ||
5676 | switch (rf->reason) { | |
5677 | case OFPRFR_GROUP_MOD: | |
5678 | ofputil_uninit_group_mod(rf->group_mod); | |
5679 | free(rf->group_mod); | |
5680 | break; | |
5681 | ||
5682 | case OFPRFR_METER_MOD: | |
5683 | ofpbuf_uninit(&rf->bands); | |
5684 | free(rf->meter_mod); | |
d18cc1ee AA |
5685 | break; |
5686 | ||
5687 | case OFPRFR_N_REASONS: | |
5688 | OVS_NOT_REACHED(); | |
3c35db62 NR |
5689 | } |
5690 | } | |
5691 | ||
307975da SH |
5692 | /* Table stats. */ |
5693 | ||
3c1bb396 BP |
5694 | /* OpenFlow 1.0 and 1.1 don't distinguish between a field that cannot be |
5695 | * matched and a field that must be wildcarded. This function returns a bitmap | |
5696 | * that contains both kinds of fields. */ | |
5697 | static struct mf_bitmap | |
5698 | wild_or_nonmatchable_fields(const struct ofputil_table_features *features) | |
5699 | { | |
5700 | struct mf_bitmap wc = features->match; | |
5701 | bitmap_not(wc.bm, MFF_N_IDS); | |
5702 | bitmap_or(wc.bm, features->wildcard.bm, MFF_N_IDS); | |
5703 | return wc; | |
5704 | } | |
5705 | ||
5706 | struct ofp10_wc_map { | |
5707 | enum ofp10_flow_wildcards wc10; | |
5708 | enum mf_field_id mf; | |
5709 | }; | |
5710 | ||
5711 | static const struct ofp10_wc_map ofp10_wc_map[] = { | |
5712 | { OFPFW10_IN_PORT, MFF_IN_PORT }, | |
5713 | { OFPFW10_DL_VLAN, MFF_VLAN_VID }, | |
5714 | { OFPFW10_DL_SRC, MFF_ETH_SRC }, | |
5715 | { OFPFW10_DL_DST, MFF_ETH_DST}, | |
5716 | { OFPFW10_DL_TYPE, MFF_ETH_TYPE }, | |
5717 | { OFPFW10_NW_PROTO, MFF_IP_PROTO }, | |
5718 | { OFPFW10_TP_SRC, MFF_TCP_SRC }, | |
5719 | { OFPFW10_TP_DST, MFF_TCP_DST }, | |
5720 | { OFPFW10_NW_SRC_MASK, MFF_IPV4_SRC }, | |
5721 | { OFPFW10_NW_DST_MASK, MFF_IPV4_DST }, | |
5722 | { OFPFW10_DL_VLAN_PCP, MFF_VLAN_PCP }, | |
5723 | { OFPFW10_NW_TOS, MFF_IP_DSCP }, | |
5724 | }; | |
5725 | ||
5726 | static ovs_be32 | |
5727 | mf_bitmap_to_of10(const struct mf_bitmap *fields) | |
5728 | { | |
5729 | const struct ofp10_wc_map *p; | |
5730 | uint32_t wc10 = 0; | |
5731 | ||
5732 | for (p = ofp10_wc_map; p < &ofp10_wc_map[ARRAY_SIZE(ofp10_wc_map)]; p++) { | |
5733 | if (bitmap_is_set(fields->bm, p->mf)) { | |
5734 | wc10 |= p->wc10; | |
5735 | } | |
5736 | } | |
5737 | return htonl(wc10); | |
5738 | } | |
5739 | ||
5740 | static struct mf_bitmap | |
5741 | mf_bitmap_from_of10(ovs_be32 wc10_) | |
5742 | { | |
5743 | struct mf_bitmap fields = MF_BITMAP_INITIALIZER; | |
5744 | const struct ofp10_wc_map *p; | |
5745 | uint32_t wc10 = ntohl(wc10_); | |
5746 | ||
5747 | for (p = ofp10_wc_map; p < &ofp10_wc_map[ARRAY_SIZE(ofp10_wc_map)]; p++) { | |
5748 | if (wc10 & p->wc10) { | |
5749 | bitmap_set1(fields.bm, p->mf); | |
5750 | } | |
5751 | } | |
5752 | return fields; | |
5753 | } | |
5754 | ||
307975da | 5755 | static void |
3c1bb396 BP |
5756 | ofputil_put_ofp10_table_stats(const struct ofputil_table_stats *stats, |
5757 | const struct ofputil_table_features *features, | |
307975da SH |
5758 | struct ofpbuf *buf) |
5759 | { | |
3c1bb396 | 5760 | struct mf_bitmap wc = wild_or_nonmatchable_fields(features); |
307975da | 5761 | struct ofp10_table_stats *out; |
307975da | 5762 | |
3bdc692b | 5763 | out = ofpbuf_put_zeros(buf, sizeof *out); |
3c1bb396 BP |
5764 | out->table_id = features->table_id; |
5765 | ovs_strlcpy(out->name, features->name, sizeof out->name); | |
5766 | out->wildcards = mf_bitmap_to_of10(&wc); | |
5767 | out->max_entries = htonl(features->max_entries); | |
5768 | out->active_count = htonl(stats->active_count); | |
5769 | put_32aligned_be64(&out->lookup_count, htonll(stats->lookup_count)); | |
5770 | put_32aligned_be64(&out->matched_count, htonll(stats->matched_count)); | |
5771 | } | |
5772 | ||
5773 | struct ofp11_wc_map { | |
5774 | enum ofp11_flow_match_fields wc11; | |
5775 | enum mf_field_id mf; | |
5776 | }; | |
5777 | ||
5778 | static const struct ofp11_wc_map ofp11_wc_map[] = { | |
5779 | { OFPFMF11_IN_PORT, MFF_IN_PORT }, | |
5780 | { OFPFMF11_DL_VLAN, MFF_VLAN_VID }, | |
5781 | { OFPFMF11_DL_VLAN_PCP, MFF_VLAN_PCP }, | |
5782 | { OFPFMF11_DL_TYPE, MFF_ETH_TYPE }, | |
5783 | { OFPFMF11_NW_TOS, MFF_IP_DSCP }, | |
5784 | { OFPFMF11_NW_PROTO, MFF_IP_PROTO }, | |
5785 | { OFPFMF11_TP_SRC, MFF_TCP_SRC }, | |
5786 | { OFPFMF11_TP_DST, MFF_TCP_DST }, | |
5787 | { OFPFMF11_MPLS_LABEL, MFF_MPLS_LABEL }, | |
5788 | { OFPFMF11_MPLS_TC, MFF_MPLS_TC }, | |
5789 | /* I don't know what OFPFMF11_TYPE means. */ | |
5790 | { OFPFMF11_DL_SRC, MFF_ETH_SRC }, | |
5791 | { OFPFMF11_DL_DST, MFF_ETH_DST }, | |
5792 | { OFPFMF11_NW_SRC, MFF_IPV4_SRC }, | |
5793 | { OFPFMF11_NW_DST, MFF_IPV4_DST }, | |
5794 | { OFPFMF11_METADATA, MFF_METADATA }, | |
5795 | }; | |
5796 | ||
5797 | static ovs_be32 | |
5798 | mf_bitmap_to_of11(const struct mf_bitmap *fields) | |
5799 | { | |
5800 | const struct ofp11_wc_map *p; | |
5801 | uint32_t wc11 = 0; | |
5802 | ||
5803 | for (p = ofp11_wc_map; p < &ofp11_wc_map[ARRAY_SIZE(ofp11_wc_map)]; p++) { | |
5804 | if (bitmap_is_set(fields->bm, p->mf)) { | |
5805 | wc11 |= p->wc11; | |
307975da SH |
5806 | } |
5807 | } | |
3c1bb396 | 5808 | return htonl(wc11); |
307975da SH |
5809 | } |
5810 | ||
3c1bb396 BP |
5811 | static struct mf_bitmap |
5812 | mf_bitmap_from_of11(ovs_be32 wc11_) | |
5813 | { | |
5814 | struct mf_bitmap fields = MF_BITMAP_INITIALIZER; | |
5815 | const struct ofp11_wc_map *p; | |
5816 | uint32_t wc11 = ntohl(wc11_); | |
5817 | ||
5818 | for (p = ofp11_wc_map; p < &ofp11_wc_map[ARRAY_SIZE(ofp11_wc_map)]; p++) { | |
5819 | if (wc11 & p->wc11) { | |
5820 | bitmap_set1(fields.bm, p->mf); | |
307975da SH |
5821 | } |
5822 | } | |
3c1bb396 | 5823 | return fields; |
307975da SH |
5824 | } |
5825 | ||
5826 | static void | |
3c1bb396 BP |
5827 | ofputil_put_ofp11_table_stats(const struct ofputil_table_stats *stats, |
5828 | const struct ofputil_table_features *features, | |
307975da SH |
5829 | struct ofpbuf *buf) |
5830 | { | |
3c1bb396 | 5831 | struct mf_bitmap wc = wild_or_nonmatchable_fields(features); |
307975da SH |
5832 | struct ofp11_table_stats *out; |
5833 | ||
3bdc692b | 5834 | out = ofpbuf_put_zeros(buf, sizeof *out); |
3c1bb396 BP |
5835 | out->table_id = features->table_id; |
5836 | ovs_strlcpy(out->name, features->name, sizeof out->name); | |
5837 | out->wildcards = mf_bitmap_to_of11(&wc); | |
5838 | out->match = mf_bitmap_to_of11(&features->match); | |
5839 | out->instructions = ovsinst_bitmap_to_openflow( | |
5840 | features->nonmiss.instructions, OFP11_VERSION); | |
5841 | out->write_actions = ofpact_bitmap_to_openflow( | |
5842 | features->nonmiss.write.ofpacts, OFP11_VERSION); | |
5843 | out->apply_actions = ofpact_bitmap_to_openflow( | |
5844 | features->nonmiss.apply.ofpacts, OFP11_VERSION); | |
5845 | out->config = htonl(features->miss_config); | |
5846 | out->max_entries = htonl(features->max_entries); | |
5847 | out->active_count = htonl(stats->active_count); | |
5848 | out->lookup_count = htonll(stats->lookup_count); | |
5849 | out->matched_count = htonll(stats->matched_count); | |
08d1e234 BP |
5850 | } |
5851 | ||
6240624b | 5852 | static void |
3c1bb396 BP |
5853 | ofputil_put_ofp12_table_stats(const struct ofputil_table_stats *stats, |
5854 | const struct ofputil_table_features *features, | |
6240624b BP |
5855 | struct ofpbuf *buf) |
5856 | { | |
08d1e234 | 5857 | struct ofp12_table_stats *out; |
6240624b | 5858 | |
08d1e234 | 5859 | out = ofpbuf_put_zeros(buf, sizeof *out); |
3c1bb396 BP |
5860 | out->table_id = features->table_id; |
5861 | ovs_strlcpy(out->name, features->name, sizeof out->name); | |
178742f9 BP |
5862 | out->match = oxm_bitmap_from_mf_bitmap(&features->match, OFP12_VERSION); |
5863 | out->wildcards = oxm_bitmap_from_mf_bitmap(&features->wildcard, | |
3c1bb396 BP |
5864 | OFP12_VERSION); |
5865 | out->write_actions = ofpact_bitmap_to_openflow( | |
5866 | features->nonmiss.write.ofpacts, OFP12_VERSION); | |
5867 | out->apply_actions = ofpact_bitmap_to_openflow( | |
5868 | features->nonmiss.apply.ofpacts, OFP12_VERSION); | |
178742f9 | 5869 | out->write_setfields = oxm_bitmap_from_mf_bitmap( |
3c1bb396 | 5870 | &features->nonmiss.write.set_fields, OFP12_VERSION); |
178742f9 | 5871 | out->apply_setfields = oxm_bitmap_from_mf_bitmap( |
3c1bb396 BP |
5872 | &features->nonmiss.apply.set_fields, OFP12_VERSION); |
5873 | out->metadata_match = features->metadata_match; | |
5874 | out->metadata_write = features->metadata_write; | |
5875 | out->instructions = ovsinst_bitmap_to_openflow( | |
5876 | features->nonmiss.instructions, OFP12_VERSION); | |
82c22d34 BP |
5877 | out->config = ofputil_encode_table_config(features->miss_config, |
5878 | OFPUTIL_TABLE_EVICTION_DEFAULT, | |
de7d3c07 | 5879 | OFPUTIL_TABLE_VACANCY_DEFAULT, |
82c22d34 | 5880 | OFP12_VERSION); |
3c1bb396 BP |
5881 | out->max_entries = htonl(features->max_entries); |
5882 | out->active_count = htonl(stats->active_count); | |
5883 | out->lookup_count = htonll(stats->lookup_count); | |
5884 | out->matched_count = htonll(stats->matched_count); | |
6240624b BP |
5885 | } |
5886 | ||
2e1ae200 | 5887 | static void |
3c1bb396 | 5888 | ofputil_put_ofp13_table_stats(const struct ofputil_table_stats *stats, |
2e1ae200 JR |
5889 | struct ofpbuf *buf) |
5890 | { | |
5891 | struct ofp13_table_stats *out; | |
5892 | ||
3c1bb396 BP |
5893 | out = ofpbuf_put_zeros(buf, sizeof *out); |
5894 | out->table_id = stats->table_id; | |
5895 | out->active_count = htonl(stats->active_count); | |
5896 | out->lookup_count = htonll(stats->lookup_count); | |
5897 | out->matched_count = htonll(stats->matched_count); | |
2e1ae200 JR |
5898 | } |
5899 | ||
307975da | 5900 | struct ofpbuf * |
3c1bb396 | 5901 | ofputil_encode_table_stats_reply(const struct ofp_header *request) |
307975da | 5902 | { |
3c1bb396 BP |
5903 | return ofpraw_alloc_stats_reply(request, 0); |
5904 | } | |
307975da | 5905 | |
3c1bb396 BP |
5906 | void |
5907 | ofputil_append_table_stats_reply(struct ofpbuf *reply, | |
5908 | const struct ofputil_table_stats *stats, | |
5909 | const struct ofputil_table_features *features) | |
5910 | { | |
6fd6ed71 | 5911 | struct ofp_header *oh = reply->header; |
307975da | 5912 | |
3c1bb396 | 5913 | ovs_assert(stats->table_id == features->table_id); |
307975da | 5914 | |
3c1bb396 BP |
5915 | switch ((enum ofp_version) oh->version) { |
5916 | case OFP10_VERSION: | |
5917 | ofputil_put_ofp10_table_stats(stats, features, reply); | |
5918 | break; | |
307975da | 5919 | |
3c1bb396 BP |
5920 | case OFP11_VERSION: |
5921 | ofputil_put_ofp11_table_stats(stats, features, reply); | |
5922 | break; | |
307975da | 5923 | |
3c1bb396 BP |
5924 | case OFP12_VERSION: |
5925 | ofputil_put_ofp12_table_stats(stats, features, reply); | |
5926 | break; | |
2e1ae200 | 5927 | |
3c1bb396 BP |
5928 | case OFP13_VERSION: |
5929 | case OFP14_VERSION: | |
5930 | case OFP15_VERSION: | |
5931 | ofputil_put_ofp13_table_stats(stats, reply); | |
5932 | break; | |
5933 | ||
5934 | default: | |
5935 | OVS_NOT_REACHED(); | |
307975da | 5936 | } |
3c1bb396 | 5937 | } |
307975da | 5938 | |
3c1bb396 BP |
5939 | static int |
5940 | ofputil_decode_ofp10_table_stats(struct ofpbuf *msg, | |
5941 | struct ofputil_table_stats *stats, | |
5942 | struct ofputil_table_features *features) | |
5943 | { | |
5944 | struct ofp10_table_stats *ots; | |
5945 | ||
5946 | ots = ofpbuf_try_pull(msg, sizeof *ots); | |
5947 | if (!ots) { | |
5948 | return OFPERR_OFPBRC_BAD_LEN; | |
5949 | } | |
5950 | ||
5951 | features->table_id = ots->table_id; | |
5952 | ovs_strlcpy(features->name, ots->name, sizeof features->name); | |
5953 | features->max_entries = ntohl(ots->max_entries); | |
5954 | features->match = features->wildcard = mf_bitmap_from_of10(ots->wildcards); | |
5955 | ||
5956 | stats->table_id = ots->table_id; | |
5957 | stats->active_count = ntohl(ots->active_count); | |
5958 | stats->lookup_count = ntohll(get_32aligned_be64(&ots->lookup_count)); | |
5959 | stats->matched_count = ntohll(get_32aligned_be64(&ots->matched_count)); | |
5960 | ||
5961 | return 0; | |
5962 | } | |
5963 | ||
5964 | static int | |
5965 | ofputil_decode_ofp11_table_stats(struct ofpbuf *msg, | |
5966 | struct ofputil_table_stats *stats, | |
5967 | struct ofputil_table_features *features) | |
5968 | { | |
5969 | struct ofp11_table_stats *ots; | |
5970 | ||
5971 | ots = ofpbuf_try_pull(msg, sizeof *ots); | |
5972 | if (!ots) { | |
5973 | return OFPERR_OFPBRC_BAD_LEN; | |
5974 | } | |
5975 | ||
5976 | features->table_id = ots->table_id; | |
5977 | ovs_strlcpy(features->name, ots->name, sizeof features->name); | |
5978 | features->max_entries = ntohl(ots->max_entries); | |
5979 | features->nonmiss.instructions = ovsinst_bitmap_from_openflow( | |
5980 | ots->instructions, OFP11_VERSION); | |
5981 | features->nonmiss.write.ofpacts = ofpact_bitmap_from_openflow( | |
5982 | ots->write_actions, OFP11_VERSION); | |
5983 | features->nonmiss.apply.ofpacts = ofpact_bitmap_from_openflow( | |
5984 | ots->write_actions, OFP11_VERSION); | |
5985 | features->miss = features->nonmiss; | |
82c22d34 BP |
5986 | features->miss_config = ofputil_decode_table_miss(ots->config, |
5987 | OFP11_VERSION); | |
3c1bb396 BP |
5988 | features->match = mf_bitmap_from_of11(ots->match); |
5989 | features->wildcard = mf_bitmap_from_of11(ots->wildcards); | |
5990 | bitmap_or(features->match.bm, features->wildcard.bm, MFF_N_IDS); | |
5991 | ||
5992 | stats->table_id = ots->table_id; | |
5993 | stats->active_count = ntohl(ots->active_count); | |
5994 | stats->lookup_count = ntohll(ots->lookup_count); | |
5995 | stats->matched_count = ntohll(ots->matched_count); | |
5996 | ||
5997 | return 0; | |
5998 | } | |
5999 | ||
6000 | static int | |
6001 | ofputil_decode_ofp12_table_stats(struct ofpbuf *msg, | |
6002 | struct ofputil_table_stats *stats, | |
6003 | struct ofputil_table_features *features) | |
6004 | { | |
6005 | struct ofp12_table_stats *ots; | |
6006 | ||
6007 | ots = ofpbuf_try_pull(msg, sizeof *ots); | |
6008 | if (!ots) { | |
6009 | return OFPERR_OFPBRC_BAD_LEN; | |
6010 | } | |
6011 | ||
6012 | features->table_id = ots->table_id; | |
6013 | ovs_strlcpy(features->name, ots->name, sizeof features->name); | |
6014 | features->metadata_match = ots->metadata_match; | |
6015 | features->metadata_write = ots->metadata_write; | |
82c22d34 BP |
6016 | features->miss_config = ofputil_decode_table_miss(ots->config, |
6017 | OFP12_VERSION); | |
3c1bb396 BP |
6018 | features->max_entries = ntohl(ots->max_entries); |
6019 | ||
6020 | features->nonmiss.instructions = ovsinst_bitmap_from_openflow( | |
6021 | ots->instructions, OFP12_VERSION); | |
6022 | features->nonmiss.write.ofpacts = ofpact_bitmap_from_openflow( | |
6023 | ots->write_actions, OFP12_VERSION); | |
6024 | features->nonmiss.apply.ofpacts = ofpact_bitmap_from_openflow( | |
6025 | ots->apply_actions, OFP12_VERSION); | |
178742f9 | 6026 | features->nonmiss.write.set_fields = oxm_bitmap_to_mf_bitmap( |
3c1bb396 | 6027 | ots->write_setfields, OFP12_VERSION); |
178742f9 | 6028 | features->nonmiss.apply.set_fields = oxm_bitmap_to_mf_bitmap( |
3c1bb396 BP |
6029 | ots->apply_setfields, OFP12_VERSION); |
6030 | features->miss = features->nonmiss; | |
6031 | ||
178742f9 BP |
6032 | features->match = oxm_bitmap_to_mf_bitmap(ots->match, OFP12_VERSION); |
6033 | features->wildcard = oxm_bitmap_to_mf_bitmap(ots->wildcards, | |
6034 | OFP12_VERSION); | |
3c1bb396 BP |
6035 | bitmap_or(features->match.bm, features->wildcard.bm, MFF_N_IDS); |
6036 | ||
6037 | stats->table_id = ots->table_id; | |
6038 | stats->active_count = ntohl(ots->active_count); | |
6039 | stats->lookup_count = ntohll(ots->lookup_count); | |
6040 | stats->matched_count = ntohll(ots->matched_count); | |
6041 | ||
6042 | return 0; | |
6043 | } | |
6044 | ||
6045 | static int | |
6046 | ofputil_decode_ofp13_table_stats(struct ofpbuf *msg, | |
6047 | struct ofputil_table_stats *stats, | |
6048 | struct ofputil_table_features *features) | |
6049 | { | |
6050 | struct ofp13_table_stats *ots; | |
6051 | ||
6052 | ots = ofpbuf_try_pull(msg, sizeof *ots); | |
6053 | if (!ots) { | |
6054 | return OFPERR_OFPBRC_BAD_LEN; | |
6055 | } | |
6056 | ||
6057 | features->table_id = ots->table_id; | |
6058 | ||
6059 | stats->table_id = ots->table_id; | |
6060 | stats->active_count = ntohl(ots->active_count); | |
6061 | stats->lookup_count = ntohll(ots->lookup_count); | |
6062 | stats->matched_count = ntohll(ots->matched_count); | |
6063 | ||
6064 | return 0; | |
6065 | } | |
6066 | ||
6067 | int | |
6068 | ofputil_decode_table_stats_reply(struct ofpbuf *msg, | |
6069 | struct ofputil_table_stats *stats, | |
6070 | struct ofputil_table_features *features) | |
6071 | { | |
6072 | const struct ofp_header *oh; | |
6073 | ||
6fd6ed71 | 6074 | if (!msg->header) { |
3c1bb396 BP |
6075 | ofpraw_pull_assert(msg); |
6076 | } | |
6fd6ed71 | 6077 | oh = msg->header; |
3c1bb396 | 6078 | |
6fd6ed71 | 6079 | if (!msg->size) { |
3c1bb396 BP |
6080 | return EOF; |
6081 | } | |
6082 | ||
6083 | memset(stats, 0, sizeof *stats); | |
6084 | memset(features, 0, sizeof *features); | |
82c22d34 BP |
6085 | features->supports_eviction = -1; |
6086 | features->supports_vacancy_events = -1; | |
3c1bb396 BP |
6087 | |
6088 | switch ((enum ofp_version) oh->version) { | |
6089 | case OFP10_VERSION: | |
6090 | return ofputil_decode_ofp10_table_stats(msg, stats, features); | |
6091 | ||
6092 | case OFP11_VERSION: | |
6093 | return ofputil_decode_ofp11_table_stats(msg, stats, features); | |
6094 | ||
6095 | case OFP12_VERSION: | |
6096 | return ofputil_decode_ofp12_table_stats(msg, stats, features); | |
6097 | ||
6098 | case OFP13_VERSION: | |
6099 | case OFP14_VERSION: | |
6100 | case OFP15_VERSION: | |
6101 | return ofputil_decode_ofp13_table_stats(msg, stats, features); | |
6102 | ||
6103 | default: | |
6104 | OVS_NOT_REACHED(); | |
6105 | } | |
307975da SH |
6106 | } |
6107 | \f | |
2b07c8b1 BP |
6108 | /* ofputil_flow_monitor_request */ |
6109 | ||
6110 | /* Converts an NXST_FLOW_MONITOR request in 'msg' into an abstract | |
6111 | * ofputil_flow_monitor_request in 'rq'. | |
6112 | * | |
6113 | * Multiple NXST_FLOW_MONITOR requests can be packed into a single OpenFlow | |
6114 | * message. Calling this function multiple times for a single 'msg' iterates | |
6115 | * through the requests. The caller must initially leave 'msg''s layer | |
6116 | * pointers null and not modify them between calls. | |
6117 | * | |
6118 | * Returns 0 if successful, EOF if no requests were left in this 'msg', | |
6119 | * otherwise an OFPERR_* value. */ | |
6120 | int | |
6121 | ofputil_decode_flow_monitor_request(struct ofputil_flow_monitor_request *rq, | |
6122 | struct ofpbuf *msg) | |
6123 | { | |
6124 | struct nx_flow_monitor_request *nfmr; | |
6125 | uint16_t flags; | |
6126 | ||
6fd6ed71 | 6127 | if (!msg->header) { |
982697a4 | 6128 | ofpraw_pull_assert(msg); |
2b07c8b1 BP |
6129 | } |
6130 | ||
6fd6ed71 | 6131 | if (!msg->size) { |
2b07c8b1 BP |
6132 | return EOF; |
6133 | } | |
6134 | ||
6135 | nfmr = ofpbuf_try_pull(msg, sizeof *nfmr); | |
6136 | if (!nfmr) { | |
437d0d22 | 6137 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR request has %"PRIu32" " |
6fd6ed71 | 6138 | "leftover bytes at end", msg->size); |
2b07c8b1 BP |
6139 | return OFPERR_OFPBRC_BAD_LEN; |
6140 | } | |
6141 | ||
6142 | flags = ntohs(nfmr->flags); | |
6143 | if (!(flags & (NXFMF_ADD | NXFMF_DELETE | NXFMF_MODIFY)) | |
6144 | || flags & ~(NXFMF_INITIAL | NXFMF_ADD | NXFMF_DELETE | |
6145 | | NXFMF_MODIFY | NXFMF_ACTIONS | NXFMF_OWN)) { | |
6146 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR has bad flags %#"PRIx16, | |
6147 | flags); | |
04f9f286 | 6148 | return OFPERR_OFPMOFC_BAD_FLAGS; |
2b07c8b1 BP |
6149 | } |
6150 | ||
6151 | if (!is_all_zeros(nfmr->zeros, sizeof nfmr->zeros)) { | |
6152 | return OFPERR_NXBRC_MUST_BE_ZERO; | |
6153 | } | |
6154 | ||
6155 | rq->id = ntohl(nfmr->id); | |
6156 | rq->flags = flags; | |
4e022ec0 | 6157 | rq->out_port = u16_to_ofp(ntohs(nfmr->out_port)); |
2b07c8b1 BP |
6158 | rq->table_id = nfmr->table_id; |
6159 | ||
81a76618 | 6160 | return nx_pull_match(msg, ntohs(nfmr->match_len), &rq->match, NULL, NULL); |
2b07c8b1 BP |
6161 | } |
6162 | ||
6163 | void | |
6164 | ofputil_append_flow_monitor_request( | |
6165 | const struct ofputil_flow_monitor_request *rq, struct ofpbuf *msg) | |
6166 | { | |
6167 | struct nx_flow_monitor_request *nfmr; | |
6168 | size_t start_ofs; | |
6169 | int match_len; | |
6170 | ||
6fd6ed71 | 6171 | if (!msg->size) { |
982697a4 | 6172 | ofpraw_put(OFPRAW_NXST_FLOW_MONITOR_REQUEST, OFP10_VERSION, msg); |
2b07c8b1 BP |
6173 | } |
6174 | ||
6fd6ed71 | 6175 | start_ofs = msg->size; |
2b07c8b1 | 6176 | ofpbuf_put_zeros(msg, sizeof *nfmr); |
7623f4dd | 6177 | match_len = nx_put_match(msg, &rq->match, htonll(0), htonll(0)); |
2b07c8b1 BP |
6178 | |
6179 | nfmr = ofpbuf_at_assert(msg, start_ofs, sizeof *nfmr); | |
6180 | nfmr->id = htonl(rq->id); | |
6181 | nfmr->flags = htons(rq->flags); | |
4e022ec0 | 6182 | nfmr->out_port = htons(ofp_to_u16(rq->out_port)); |
2b07c8b1 BP |
6183 | nfmr->match_len = htons(match_len); |
6184 | nfmr->table_id = rq->table_id; | |
6185 | } | |
6186 | ||
6187 | /* Converts an NXST_FLOW_MONITOR reply (also known as a flow update) in 'msg' | |
6188 | * into an abstract ofputil_flow_update in 'update'. The caller must have | |
81a76618 | 6189 | * initialized update->match to point to space allocated for a match. |
2b07c8b1 BP |
6190 | * |
6191 | * Uses 'ofpacts' to store the abstract OFPACT_* version of the update's | |
6192 | * actions (except for NXFME_ABBREV, which never includes actions). The caller | |
6193 | * must initialize 'ofpacts' and retains ownership of it. 'update->ofpacts' | |
6194 | * will point into the 'ofpacts' buffer. | |
6195 | * | |
6196 | * Multiple flow updates can be packed into a single OpenFlow message. Calling | |
6197 | * this function multiple times for a single 'msg' iterates through the | |
6198 | * updates. The caller must initially leave 'msg''s layer pointers null and | |
6199 | * not modify them between calls. | |
6200 | * | |
6201 | * Returns 0 if successful, EOF if no updates were left in this 'msg', | |
6202 | * otherwise an OFPERR_* value. */ | |
6203 | int | |
6204 | ofputil_decode_flow_update(struct ofputil_flow_update *update, | |
6205 | struct ofpbuf *msg, struct ofpbuf *ofpacts) | |
6206 | { | |
6207 | struct nx_flow_update_header *nfuh; | |
6208 | unsigned int length; | |
e3f8f887 | 6209 | struct ofp_header *oh; |
2b07c8b1 | 6210 | |
6fd6ed71 | 6211 | if (!msg->header) { |
982697a4 | 6212 | ofpraw_pull_assert(msg); |
2b07c8b1 BP |
6213 | } |
6214 | ||
9abca1e5 | 6215 | ofpbuf_clear(ofpacts); |
6fd6ed71 | 6216 | if (!msg->size) { |
2b07c8b1 BP |
6217 | return EOF; |
6218 | } | |
6219 | ||
6fd6ed71 | 6220 | if (msg->size < sizeof(struct nx_flow_update_header)) { |
2b07c8b1 BP |
6221 | goto bad_len; |
6222 | } | |
6223 | ||
6fd6ed71 | 6224 | oh = msg->header; |
e3f8f887 | 6225 | |
6fd6ed71 | 6226 | nfuh = msg->data; |
2b07c8b1 BP |
6227 | update->event = ntohs(nfuh->event); |
6228 | length = ntohs(nfuh->length); | |
6fd6ed71 | 6229 | if (length > msg->size || length % 8) { |
2b07c8b1 BP |
6230 | goto bad_len; |
6231 | } | |
6232 | ||
6233 | if (update->event == NXFME_ABBREV) { | |
6234 | struct nx_flow_update_abbrev *nfua; | |
6235 | ||
6236 | if (length != sizeof *nfua) { | |
6237 | goto bad_len; | |
6238 | } | |
6239 | ||
6240 | nfua = ofpbuf_pull(msg, sizeof *nfua); | |
6241 | update->xid = nfua->xid; | |
6242 | return 0; | |
6243 | } else if (update->event == NXFME_ADDED | |
6244 | || update->event == NXFME_DELETED | |
6245 | || update->event == NXFME_MODIFIED) { | |
6246 | struct nx_flow_update_full *nfuf; | |
6247 | unsigned int actions_len; | |
6248 | unsigned int match_len; | |
6249 | enum ofperr error; | |
6250 | ||
6251 | if (length < sizeof *nfuf) { | |
6252 | goto bad_len; | |
6253 | } | |
6254 | ||
6255 | nfuf = ofpbuf_pull(msg, sizeof *nfuf); | |
6256 | match_len = ntohs(nfuf->match_len); | |
6257 | if (sizeof *nfuf + match_len > length) { | |
6258 | goto bad_len; | |
6259 | } | |
6260 | ||
6261 | update->reason = ntohs(nfuf->reason); | |
6262 | update->idle_timeout = ntohs(nfuf->idle_timeout); | |
6263 | update->hard_timeout = ntohs(nfuf->hard_timeout); | |
6264 | update->table_id = nfuf->table_id; | |
6265 | update->cookie = nfuf->cookie; | |
81a76618 | 6266 | update->priority = ntohs(nfuf->priority); |
2b07c8b1 | 6267 | |
81a76618 | 6268 | error = nx_pull_match(msg, match_len, update->match, NULL, NULL); |
2b07c8b1 BP |
6269 | if (error) { |
6270 | return error; | |
6271 | } | |
6272 | ||
6273 | actions_len = length - sizeof *nfuf - ROUND_UP(match_len, 8); | |
e3f8f887 JR |
6274 | error = ofpacts_pull_openflow_actions(msg, actions_len, oh->version, |
6275 | ofpacts); | |
2b07c8b1 BP |
6276 | if (error) { |
6277 | return error; | |
6278 | } | |
6279 | ||
6fd6ed71 PS |
6280 | update->ofpacts = ofpacts->data; |
6281 | update->ofpacts_len = ofpacts->size; | |
2b07c8b1 BP |
6282 | return 0; |
6283 | } else { | |
6284 | VLOG_WARN_RL(&bad_ofmsg_rl, | |
6285 | "NXST_FLOW_MONITOR reply has bad event %"PRIu16, | |
6286 | ntohs(nfuh->event)); | |
15549878 | 6287 | return OFPERR_NXBRC_FM_BAD_EVENT; |
2b07c8b1 BP |
6288 | } |
6289 | ||
6290 | bad_len: | |
437d0d22 | 6291 | VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR reply has %"PRIu32" " |
6fd6ed71 | 6292 | "leftover bytes at end", msg->size); |
2b07c8b1 BP |
6293 | return OFPERR_OFPBRC_BAD_LEN; |
6294 | } | |
6295 | ||
6296 | uint32_t | |
6297 | ofputil_decode_flow_monitor_cancel(const struct ofp_header *oh) | |
6298 | { | |
982697a4 BP |
6299 | const struct nx_flow_monitor_cancel *cancel = ofpmsg_body(oh); |
6300 | ||
6301 | return ntohl(cancel->id); | |
2b07c8b1 | 6302 | } |
9e1fd49b | 6303 | |
2b07c8b1 BP |
6304 | struct ofpbuf * |
6305 | ofputil_encode_flow_monitor_cancel(uint32_t id) | |
6306 | { | |
6307 | struct nx_flow_monitor_cancel *nfmc; | |
6308 | struct ofpbuf *msg; | |
6309 | ||
982697a4 BP |
6310 | msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MONITOR_CANCEL, OFP10_VERSION, 0); |
6311 | nfmc = ofpbuf_put_uninit(msg, sizeof *nfmc); | |
2b07c8b1 BP |
6312 | nfmc->id = htonl(id); |
6313 | return msg; | |
6314 | } | |
6315 | ||
6316 | void | |
ca6ba700 | 6317 | ofputil_start_flow_update(struct ovs_list *replies) |
2b07c8b1 BP |
6318 | { |
6319 | struct ofpbuf *msg; | |
6320 | ||
982697a4 BP |
6321 | msg = ofpraw_alloc_xid(OFPRAW_NXST_FLOW_MONITOR_REPLY, OFP10_VERSION, |
6322 | htonl(0), 1024); | |
2b07c8b1 BP |
6323 | |
6324 | list_init(replies); | |
6325 | list_push_back(replies, &msg->list_node); | |
6326 | } | |
6327 | ||
6328 | void | |
6329 | ofputil_append_flow_update(const struct ofputil_flow_update *update, | |
ca6ba700 | 6330 | struct ovs_list *replies) |
2b07c8b1 | 6331 | { |
e28ac5cf | 6332 | enum ofp_version version = ofpmp_version(replies); |
2b07c8b1 BP |
6333 | struct nx_flow_update_header *nfuh; |
6334 | struct ofpbuf *msg; | |
6335 | size_t start_ofs; | |
6336 | ||
6337 | msg = ofpbuf_from_list(list_back(replies)); | |
6fd6ed71 | 6338 | start_ofs = msg->size; |
2b07c8b1 BP |
6339 | |
6340 | if (update->event == NXFME_ABBREV) { | |
6341 | struct nx_flow_update_abbrev *nfua; | |
6342 | ||
6343 | nfua = ofpbuf_put_zeros(msg, sizeof *nfua); | |
6344 | nfua->xid = update->xid; | |
6345 | } else { | |
6346 | struct nx_flow_update_full *nfuf; | |
6347 | int match_len; | |
6348 | ||
6349 | ofpbuf_put_zeros(msg, sizeof *nfuf); | |
7623f4dd | 6350 | match_len = nx_put_match(msg, update->match, htonll(0), htonll(0)); |
e3f8f887 JR |
6351 | ofpacts_put_openflow_actions(update->ofpacts, update->ofpacts_len, msg, |
6352 | version); | |
2b07c8b1 BP |
6353 | nfuf = ofpbuf_at_assert(msg, start_ofs, sizeof *nfuf); |
6354 | nfuf->reason = htons(update->reason); | |
81a76618 | 6355 | nfuf->priority = htons(update->priority); |
2b07c8b1 BP |
6356 | nfuf->idle_timeout = htons(update->idle_timeout); |
6357 | nfuf->hard_timeout = htons(update->hard_timeout); | |
6358 | nfuf->match_len = htons(match_len); | |
6359 | nfuf->table_id = update->table_id; | |
6360 | nfuf->cookie = update->cookie; | |
6361 | } | |
6362 | ||
6363 | nfuh = ofpbuf_at_assert(msg, start_ofs, sizeof *nfuh); | |
6fd6ed71 | 6364 | nfuh->length = htons(msg->size - start_ofs); |
2b07c8b1 BP |
6365 | nfuh->event = htons(update->event); |
6366 | ||
982697a4 | 6367 | ofpmp_postappend(replies, start_ofs); |
2b07c8b1 BP |
6368 | } |
6369 | \f | |
c6a93eb7 | 6370 | struct ofpbuf * |
de0f3156 SH |
6371 | ofputil_encode_packet_out(const struct ofputil_packet_out *po, |
6372 | enum ofputil_protocol protocol) | |
c6a93eb7 | 6373 | { |
de0f3156 | 6374 | enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol); |
c6a93eb7 BP |
6375 | struct ofpbuf *msg; |
6376 | size_t size; | |
6377 | ||
982697a4 | 6378 | size = po->ofpacts_len; |
c6a93eb7 BP |
6379 | if (po->buffer_id == UINT32_MAX) { |
6380 | size += po->packet_len; | |
6381 | } | |
6382 | ||
de0f3156 SH |
6383 | switch (ofp_version) { |
6384 | case OFP10_VERSION: { | |
31a9e63f | 6385 | struct ofp10_packet_out *opo; |
de0f3156 SH |
6386 | size_t actions_ofs; |
6387 | ||
6388 | msg = ofpraw_alloc(OFPRAW_OFPT10_PACKET_OUT, OFP10_VERSION, size); | |
6389 | ofpbuf_put_zeros(msg, sizeof *opo); | |
6fd6ed71 | 6390 | actions_ofs = msg->size; |
e3f8f887 JR |
6391 | ofpacts_put_openflow_actions(po->ofpacts, po->ofpacts_len, msg, |
6392 | ofp_version); | |
de0f3156 | 6393 | |
6fd6ed71 | 6394 | opo = msg->msg; |
de0f3156 | 6395 | opo->buffer_id = htonl(po->buffer_id); |
4e022ec0 | 6396 | opo->in_port = htons(ofp_to_u16(po->in_port)); |
6fd6ed71 | 6397 | opo->actions_len = htons(msg->size - actions_ofs); |
de0f3156 SH |
6398 | break; |
6399 | } | |
f25d0cf3 | 6400 | |
de0f3156 | 6401 | case OFP11_VERSION: |
2e1ae200 | 6402 | case OFP12_VERSION: |
c37c0382 | 6403 | case OFP13_VERSION: |
42dccab5 BP |
6404 | case OFP14_VERSION: |
6405 | case OFP15_VERSION: { | |
7c1b1a0d SH |
6406 | struct ofp11_packet_out *opo; |
6407 | size_t len; | |
6408 | ||
6409 | msg = ofpraw_alloc(OFPRAW_OFPT11_PACKET_OUT, ofp_version, size); | |
6410 | ofpbuf_put_zeros(msg, sizeof *opo); | |
e3f8f887 JR |
6411 | len = ofpacts_put_openflow_actions(po->ofpacts, po->ofpacts_len, msg, |
6412 | ofp_version); | |
6fd6ed71 | 6413 | opo = msg->msg; |
7c1b1a0d SH |
6414 | opo->buffer_id = htonl(po->buffer_id); |
6415 | opo->in_port = ofputil_port_to_ofp11(po->in_port); | |
6416 | opo->actions_len = htons(len); | |
6417 | break; | |
6418 | } | |
6419 | ||
de0f3156 | 6420 | default: |
428b2edd | 6421 | OVS_NOT_REACHED(); |
de0f3156 | 6422 | } |
f25d0cf3 | 6423 | |
c6a93eb7 BP |
6424 | if (po->buffer_id == UINT32_MAX) { |
6425 | ofpbuf_put(msg, po->packet, po->packet_len); | |
6426 | } | |
f25d0cf3 | 6427 | |
982697a4 | 6428 | ofpmsg_update_length(msg); |
c6a93eb7 BP |
6429 | |
6430 | return msg; | |
6431 | } | |
d1e2cf21 | 6432 | \f |
fa37b408 BP |
6433 | /* Creates and returns an OFPT_ECHO_REQUEST message with an empty payload. */ |
6434 | struct ofpbuf * | |
1a126c0c | 6435 | make_echo_request(enum ofp_version ofp_version) |
fa37b408 | 6436 | { |
1a126c0c | 6437 | return ofpraw_alloc_xid(OFPRAW_OFPT_ECHO_REQUEST, ofp_version, |
982697a4 | 6438 | htonl(0), 0); |
fa37b408 BP |
6439 | } |
6440 | ||
6441 | /* Creates and returns an OFPT_ECHO_REPLY message matching the | |
6442 | * OFPT_ECHO_REQUEST message in 'rq'. */ | |
6443 | struct ofpbuf * | |
6444 | make_echo_reply(const struct ofp_header *rq) | |
6445 | { | |
982697a4 BP |
6446 | struct ofpbuf rq_buf; |
6447 | struct ofpbuf *reply; | |
6448 | ||
6449 | ofpbuf_use_const(&rq_buf, rq, ntohs(rq->length)); | |
6450 | ofpraw_pull_assert(&rq_buf); | |
6451 | ||
6fd6ed71 PS |
6452 | reply = ofpraw_alloc_reply(OFPRAW_OFPT_ECHO_REPLY, rq, rq_buf.size); |
6453 | ofpbuf_put(reply, rq_buf.data, rq_buf.size); | |
982697a4 | 6454 | return reply; |
fa37b408 BP |
6455 | } |
6456 | ||
efb80167 | 6457 | struct ofpbuf * |
a0ae0b6e | 6458 | ofputil_encode_barrier_request(enum ofp_version ofp_version) |
efb80167 | 6459 | { |
a0ae0b6e SH |
6460 | enum ofpraw type; |
6461 | ||
6462 | switch (ofp_version) { | |
42dccab5 | 6463 | case OFP15_VERSION: |
c37c0382 | 6464 | case OFP14_VERSION: |
2e1ae200 | 6465 | case OFP13_VERSION: |
a0ae0b6e SH |
6466 | case OFP12_VERSION: |
6467 | case OFP11_VERSION: | |
6468 | type = OFPRAW_OFPT11_BARRIER_REQUEST; | |
6469 | break; | |
6470 | ||
6471 | case OFP10_VERSION: | |
6472 | type = OFPRAW_OFPT10_BARRIER_REQUEST; | |
6473 | break; | |
6474 | ||
6475 | default: | |
428b2edd | 6476 | OVS_NOT_REACHED(); |
a0ae0b6e SH |
6477 | } |
6478 | ||
6479 | return ofpraw_alloc(type, ofp_version, 0); | |
efb80167 BP |
6480 | } |
6481 | ||
7257b535 | 6482 | const char * |
ad99e2ed | 6483 | ofputil_frag_handling_to_string(enum ofputil_frag_handling frag) |
7257b535 | 6484 | { |
ad99e2ed BP |
6485 | switch (frag) { |
6486 | case OFPUTIL_FRAG_NORMAL: return "normal"; | |
6487 | case OFPUTIL_FRAG_DROP: return "drop"; | |
6488 | case OFPUTIL_FRAG_REASM: return "reassemble"; | |
6489 | case OFPUTIL_FRAG_NX_MATCH: return "nx-match"; | |
7257b535 BP |
6490 | } |
6491 | ||
428b2edd | 6492 | OVS_NOT_REACHED(); |
7257b535 BP |
6493 | } |
6494 | ||
6495 | bool | |
ad99e2ed BP |
6496 | ofputil_frag_handling_from_string(const char *s, |
6497 | enum ofputil_frag_handling *frag) | |
7257b535 BP |
6498 | { |
6499 | if (!strcasecmp(s, "normal")) { | |
ad99e2ed | 6500 | *frag = OFPUTIL_FRAG_NORMAL; |
7257b535 | 6501 | } else if (!strcasecmp(s, "drop")) { |
ad99e2ed | 6502 | *frag = OFPUTIL_FRAG_DROP; |
7257b535 | 6503 | } else if (!strcasecmp(s, "reassemble")) { |
ad99e2ed | 6504 | *frag = OFPUTIL_FRAG_REASM; |
7257b535 | 6505 | } else if (!strcasecmp(s, "nx-match")) { |
ad99e2ed | 6506 | *frag = OFPUTIL_FRAG_NX_MATCH; |
7257b535 BP |
6507 | } else { |
6508 | return false; | |
6509 | } | |
6510 | return true; | |
6511 | } | |
6512 | ||
7b7503ea BP |
6513 | /* Converts the OpenFlow 1.1+ port number 'ofp11_port' into an OpenFlow 1.0 |
6514 | * port number and stores the latter in '*ofp10_port', for the purpose of | |
6515 | * decoding OpenFlow 1.1+ protocol messages. Returns 0 if successful, | |
bc146369 | 6516 | * otherwise an OFPERR_* number. On error, stores OFPP_NONE in '*ofp10_port'. |
7b7503ea BP |
6517 | * |
6518 | * See the definition of OFP11_MAX for an explanation of the mapping. */ | |
6519 | enum ofperr | |
4e022ec0 | 6520 | ofputil_port_from_ofp11(ovs_be32 ofp11_port, ofp_port_t *ofp10_port) |
7b7503ea BP |
6521 | { |
6522 | uint32_t ofp11_port_h = ntohl(ofp11_port); | |
6523 | ||
4e022ec0 AW |
6524 | if (ofp11_port_h < ofp_to_u16(OFPP_MAX)) { |
6525 | *ofp10_port = u16_to_ofp(ofp11_port_h); | |
7b7503ea | 6526 | return 0; |
4e022ec0 AW |
6527 | } else if (ofp11_port_h >= ofp11_to_u32(OFPP11_MAX)) { |
6528 | *ofp10_port = u16_to_ofp(ofp11_port_h - OFPP11_OFFSET); | |
7b7503ea BP |
6529 | return 0; |
6530 | } else { | |
bc146369 | 6531 | *ofp10_port = OFPP_NONE; |
7b7503ea BP |
6532 | VLOG_WARN_RL(&bad_ofmsg_rl, "port %"PRIu32" is outside the supported " |
6533 | "range 0 through %d or 0x%"PRIx32" through 0x%"PRIx32, | |
4e022ec0 AW |
6534 | ofp11_port_h, ofp_to_u16(OFPP_MAX) - 1, |
6535 | ofp11_to_u32(OFPP11_MAX), UINT32_MAX); | |
7b7503ea BP |
6536 | return OFPERR_OFPBAC_BAD_OUT_PORT; |
6537 | } | |
6538 | } | |
6539 | ||
6540 | /* Returns the OpenFlow 1.1+ port number equivalent to the OpenFlow 1.0 port | |
6541 | * number 'ofp10_port', for encoding OpenFlow 1.1+ protocol messages. | |
6542 | * | |
6543 | * See the definition of OFP11_MAX for an explanation of the mapping. */ | |
6544 | ovs_be32 | |
4e022ec0 | 6545 | ofputil_port_to_ofp11(ofp_port_t ofp10_port) |
7b7503ea | 6546 | { |
4e022ec0 AW |
6547 | return htonl(ofp_to_u16(ofp10_port) < ofp_to_u16(OFPP_MAX) |
6548 | ? ofp_to_u16(ofp10_port) | |
6549 | : ofp_to_u16(ofp10_port) + OFPP11_OFFSET); | |
7b7503ea BP |
6550 | } |
6551 | ||
39dc9082 BP |
6552 | #define OFPUTIL_NAMED_PORTS \ |
6553 | OFPUTIL_NAMED_PORT(IN_PORT) \ | |
6554 | OFPUTIL_NAMED_PORT(TABLE) \ | |
6555 | OFPUTIL_NAMED_PORT(NORMAL) \ | |
6556 | OFPUTIL_NAMED_PORT(FLOOD) \ | |
6557 | OFPUTIL_NAMED_PORT(ALL) \ | |
6558 | OFPUTIL_NAMED_PORT(CONTROLLER) \ | |
6559 | OFPUTIL_NAMED_PORT(LOCAL) \ | |
c61f3870 BP |
6560 | OFPUTIL_NAMED_PORT(ANY) \ |
6561 | OFPUTIL_NAMED_PORT(UNSET) | |
7f05e7ab JR |
6562 | |
6563 | /* For backwards compatibility, so that "none" is recognized as OFPP_ANY */ | |
6564 | #define OFPUTIL_NAMED_PORTS_WITH_NONE \ | |
6565 | OFPUTIL_NAMED_PORTS \ | |
39dc9082 BP |
6566 | OFPUTIL_NAMED_PORT(NONE) |
6567 | ||
8010100b BP |
6568 | /* Stores the port number represented by 's' into '*portp'. 's' may be an |
6569 | * integer or, for reserved ports, the standard OpenFlow name for the port | |
6570 | * (e.g. "LOCAL"). | |
c6100d92 | 6571 | * |
8010100b BP |
6572 | * Returns true if successful, false if 's' is not a valid OpenFlow port number |
6573 | * or name. The caller should issue an error message in this case, because | |
6574 | * this function usually does not. (This gives the caller an opportunity to | |
6575 | * look up the port name another way, e.g. by contacting the switch and listing | |
6576 | * the names of all its ports). | |
c6100d92 BP |
6577 | * |
6578 | * This function accepts OpenFlow 1.0 port numbers. It also accepts a subset | |
6579 | * of OpenFlow 1.1+ port numbers, mapping those port numbers into the 16-bit | |
6580 | * range as described in include/openflow/openflow-1.1.h. */ | |
8010100b | 6581 | bool |
4e022ec0 | 6582 | ofputil_port_from_string(const char *s, ofp_port_t *portp) |
39dc9082 | 6583 | { |
5b23ff7e | 6584 | unsigned int port32; /* int is at least 32 bits wide. */ |
c6100d92 | 6585 | |
5b23ff7e JR |
6586 | if (*s == '-') { |
6587 | VLOG_WARN("Negative value %s is not a valid port number.", s); | |
6588 | return false; | |
6589 | } | |
8010100b | 6590 | *portp = 0; |
c6100d92 | 6591 | if (str_to_uint(s, 10, &port32)) { |
4e022ec0 AW |
6592 | if (port32 < ofp_to_u16(OFPP_MAX)) { |
6593 | /* Pass. */ | |
6594 | } else if (port32 < ofp_to_u16(OFPP_FIRST_RESV)) { | |
c6100d92 BP |
6595 | VLOG_WARN("port %u is a reserved OF1.0 port number that will " |
6596 | "be translated to %u when talking to an OF1.1 or " | |
6597 | "later controller", port32, port32 + OFPP11_OFFSET); | |
4e022ec0 | 6598 | } else if (port32 <= ofp_to_u16(OFPP_LAST_RESV)) { |
28b11432 BP |
6599 | char name[OFP_MAX_PORT_NAME_LEN]; |
6600 | ||
6601 | ofputil_port_to_string(u16_to_ofp(port32), name, sizeof name); | |
6602 | VLOG_WARN_ONCE("referring to port %s as %"PRIu32" is deprecated " | |
6603 | "for compatibility with OpenFlow 1.1 and later", | |
6604 | name, port32); | |
4e022ec0 | 6605 | } else if (port32 < ofp11_to_u32(OFPP11_MAX)) { |
c6100d92 | 6606 | VLOG_WARN("port %u is outside the supported range 0 through " |
d047fd17 | 6607 | "%"PRIx16" or 0x%x through 0x%"PRIx32, port32, |
4e022ec0 | 6608 | UINT16_MAX, ofp11_to_u32(OFPP11_MAX), UINT32_MAX); |
8010100b | 6609 | return false; |
c6100d92 | 6610 | } else { |
4e022ec0 | 6611 | port32 -= OFPP11_OFFSET; |
c6100d92 | 6612 | } |
4e022ec0 AW |
6613 | |
6614 | *portp = u16_to_ofp(port32); | |
6615 | return true; | |
c6100d92 BP |
6616 | } else { |
6617 | struct pair { | |
6618 | const char *name; | |
4e022ec0 | 6619 | ofp_port_t value; |
c6100d92 BP |
6620 | }; |
6621 | static const struct pair pairs[] = { | |
39dc9082 | 6622 | #define OFPUTIL_NAMED_PORT(NAME) {#NAME, OFPP_##NAME}, |
7f05e7ab | 6623 | OFPUTIL_NAMED_PORTS_WITH_NONE |
39dc9082 | 6624 | #undef OFPUTIL_NAMED_PORT |
c6100d92 BP |
6625 | }; |
6626 | const struct pair *p; | |
39dc9082 | 6627 | |
c6100d92 BP |
6628 | for (p = pairs; p < &pairs[ARRAY_SIZE(pairs)]; p++) { |
6629 | if (!strcasecmp(s, p->name)) { | |
8010100b BP |
6630 | *portp = p->value; |
6631 | return true; | |
c6100d92 | 6632 | } |
39dc9082 | 6633 | } |
8010100b | 6634 | return false; |
39dc9082 | 6635 | } |
39dc9082 BP |
6636 | } |
6637 | ||
6638 | /* Appends to 's' a string representation of the OpenFlow port number 'port'. | |
6639 | * Most ports' string representation is just the port number, but for special | |
6640 | * ports, e.g. OFPP_LOCAL, it is the name, e.g. "LOCAL". */ | |
6641 | void | |
4e022ec0 | 6642 | ofputil_format_port(ofp_port_t port, struct ds *s) |
39dc9082 | 6643 | { |
28b11432 BP |
6644 | char name[OFP_MAX_PORT_NAME_LEN]; |
6645 | ||
6646 | ofputil_port_to_string(port, name, sizeof name); | |
6647 | ds_put_cstr(s, name); | |
6648 | } | |
39dc9082 | 6649 | |
28b11432 BP |
6650 | /* Puts in the 'bufsize' byte in 'namebuf' a null-terminated string |
6651 | * representation of OpenFlow port number 'port'. Most ports are represented | |
6652 | * as just the port number, but special ports, e.g. OFPP_LOCAL, are represented | |
6653 | * by name, e.g. "LOCAL". */ | |
6654 | void | |
6655 | ofputil_port_to_string(ofp_port_t port, | |
6656 | char namebuf[OFP_MAX_PORT_NAME_LEN], size_t bufsize) | |
6657 | { | |
39dc9082 | 6658 | switch (port) { |
28b11432 BP |
6659 | #define OFPUTIL_NAMED_PORT(NAME) \ |
6660 | case OFPP_##NAME: \ | |
6661 | ovs_strlcpy(namebuf, #NAME, bufsize); \ | |
6662 | break; | |
39dc9082 BP |
6663 | OFPUTIL_NAMED_PORTS |
6664 | #undef OFPUTIL_NAMED_PORT | |
6665 | ||
6666 | default: | |
28b11432 BP |
6667 | snprintf(namebuf, bufsize, "%"PRIu16, port); |
6668 | break; | |
39dc9082 | 6669 | } |
39dc9082 BP |
6670 | } |
6671 | ||
7395c052 NZ |
6672 | /* Stores the group id represented by 's' into '*group_idp'. 's' may be an |
6673 | * integer or, for reserved group IDs, the standard OpenFlow name for the group | |
6674 | * (either "ANY" or "ALL"). | |
6675 | * | |
6676 | * Returns true if successful, false if 's' is not a valid OpenFlow group ID or | |
6677 | * name. */ | |
6678 | bool | |
6679 | ofputil_group_from_string(const char *s, uint32_t *group_idp) | |
6680 | { | |
6681 | if (!strcasecmp(s, "any")) { | |
30ef36c6 | 6682 | *group_idp = OFPG_ANY; |
7395c052 | 6683 | } else if (!strcasecmp(s, "all")) { |
30ef36c6 | 6684 | *group_idp = OFPG_ALL; |
7395c052 NZ |
6685 | } else if (!str_to_uint(s, 10, group_idp)) { |
6686 | VLOG_WARN("%s is not a valid group ID. (Valid group IDs are " | |
6687 | "32-bit nonnegative integers or the keywords ANY or " | |
6688 | "ALL.)", s); | |
6689 | return false; | |
6690 | } | |
6691 | ||
6692 | return true; | |
6693 | } | |
6694 | ||
6695 | /* Appends to 's' a string representation of the OpenFlow group ID 'group_id'. | |
6696 | * Most groups' string representation is just the number, but for special | |
30ef36c6 | 6697 | * groups, e.g. OFPG_ALL, it is the name, e.g. "ALL". */ |
7395c052 NZ |
6698 | void |
6699 | ofputil_format_group(uint32_t group_id, struct ds *s) | |
6700 | { | |
6701 | char name[MAX_GROUP_NAME_LEN]; | |
6702 | ||
6703 | ofputil_group_to_string(group_id, name, sizeof name); | |
6704 | ds_put_cstr(s, name); | |
6705 | } | |
6706 | ||
6707 | ||
6708 | /* Puts in the 'bufsize' byte in 'namebuf' a null-terminated string | |
6709 | * representation of OpenFlow group ID 'group_id'. Most group are represented | |
30ef36c6 | 6710 | * as just their number, but special groups, e.g. OFPG_ALL, are represented |
7395c052 NZ |
6711 | * by name, e.g. "ALL". */ |
6712 | void | |
6713 | ofputil_group_to_string(uint32_t group_id, | |
6714 | char namebuf[MAX_GROUP_NAME_LEN + 1], size_t bufsize) | |
6715 | { | |
6716 | switch (group_id) { | |
30ef36c6 | 6717 | case OFPG_ALL: |
7395c052 NZ |
6718 | ovs_strlcpy(namebuf, "ALL", bufsize); |
6719 | break; | |
6720 | ||
30ef36c6 | 6721 | case OFPG_ANY: |
7395c052 NZ |
6722 | ovs_strlcpy(namebuf, "ANY", bufsize); |
6723 | break; | |
6724 | ||
6725 | default: | |
6726 | snprintf(namebuf, bufsize, "%"PRIu32, group_id); | |
6727 | break; | |
6728 | } | |
6729 | } | |
6730 | ||
2be393ed JP |
6731 | /* Given a buffer 'b' that contains an array of OpenFlow ports of type |
6732 | * 'ofp_version', tries to pull the first element from the array. If | |
6733 | * successful, initializes '*pp' with an abstract representation of the | |
6734 | * port and returns 0. If no ports remain to be decoded, returns EOF. | |
6735 | * On an error, returns a positive OFPERR_* value. */ | |
6736 | int | |
2e3fa633 | 6737 | ofputil_pull_phy_port(enum ofp_version ofp_version, struct ofpbuf *b, |
2be393ed JP |
6738 | struct ofputil_phy_port *pp) |
6739 | { | |
8c3cc785 BP |
6740 | memset(pp, 0, sizeof *pp); |
6741 | ||
2e3fa633 SH |
6742 | switch (ofp_version) { |
6743 | case OFP10_VERSION: { | |
2be393ed JP |
6744 | const struct ofp10_phy_port *opp = ofpbuf_try_pull(b, sizeof *opp); |
6745 | return opp ? ofputil_decode_ofp10_phy_port(pp, opp) : EOF; | |
2e3fa633 SH |
6746 | } |
6747 | case OFP11_VERSION: | |
2e1ae200 JR |
6748 | case OFP12_VERSION: |
6749 | case OFP13_VERSION: { | |
2be393ed JP |
6750 | const struct ofp11_port *op = ofpbuf_try_pull(b, sizeof *op); |
6751 | return op ? ofputil_decode_ofp11_port(pp, op) : EOF; | |
6752 | } | |
c37c0382 | 6753 | case OFP14_VERSION: |
42dccab5 | 6754 | case OFP15_VERSION: |
6fd6ed71 | 6755 | return b->size ? ofputil_pull_ofp14_port(pp, b) : EOF; |
2e3fa633 | 6756 | default: |
428b2edd | 6757 | OVS_NOT_REACHED(); |
2e3fa633 | 6758 | } |
2be393ed JP |
6759 | } |
6760 | ||
3cbd9931 | 6761 | static void |
81a76618 | 6762 | ofputil_normalize_match__(struct match *match, bool may_log) |
b459a924 BP |
6763 | { |
6764 | enum { | |
6765 | MAY_NW_ADDR = 1 << 0, /* nw_src, nw_dst */ | |
6766 | MAY_TP_ADDR = 1 << 1, /* tp_src, tp_dst */ | |
6767 | MAY_NW_PROTO = 1 << 2, /* nw_proto */ | |
a61680c6 | 6768 | MAY_IPVx = 1 << 3, /* tos, frag, ttl */ |
b459a924 BP |
6769 | MAY_ARP_SHA = 1 << 4, /* arp_sha */ |
6770 | MAY_ARP_THA = 1 << 5, /* arp_tha */ | |
d78477ec | 6771 | MAY_IPV6 = 1 << 6, /* ipv6_src, ipv6_dst, ipv6_label */ |
b02475c5 SH |
6772 | MAY_ND_TARGET = 1 << 7, /* nd_target */ |
6773 | MAY_MPLS = 1 << 8, /* mpls label and tc */ | |
b459a924 BP |
6774 | } may_match; |
6775 | ||
6776 | struct flow_wildcards wc; | |
6777 | ||
6778 | /* Figure out what fields may be matched. */ | |
81a76618 | 6779 | if (match->flow.dl_type == htons(ETH_TYPE_IP)) { |
9e44d715 | 6780 | may_match = MAY_NW_PROTO | MAY_IPVx | MAY_NW_ADDR; |
81a76618 BP |
6781 | if (match->flow.nw_proto == IPPROTO_TCP || |
6782 | match->flow.nw_proto == IPPROTO_UDP || | |
0d56eaf2 | 6783 | match->flow.nw_proto == IPPROTO_SCTP || |
81a76618 | 6784 | match->flow.nw_proto == IPPROTO_ICMP) { |
b459a924 BP |
6785 | may_match |= MAY_TP_ADDR; |
6786 | } | |
81a76618 | 6787 | } else if (match->flow.dl_type == htons(ETH_TYPE_IPV6)) { |
d78477ec | 6788 | may_match = MAY_NW_PROTO | MAY_IPVx | MAY_IPV6; |
81a76618 | 6789 | if (match->flow.nw_proto == IPPROTO_TCP || |
0d56eaf2 JS |
6790 | match->flow.nw_proto == IPPROTO_UDP || |
6791 | match->flow.nw_proto == IPPROTO_SCTP) { | |
b459a924 | 6792 | may_match |= MAY_TP_ADDR; |
81a76618 | 6793 | } else if (match->flow.nw_proto == IPPROTO_ICMPV6) { |
b459a924 | 6794 | may_match |= MAY_TP_ADDR; |
81a76618 | 6795 | if (match->flow.tp_src == htons(ND_NEIGHBOR_SOLICIT)) { |
b459a924 | 6796 | may_match |= MAY_ND_TARGET | MAY_ARP_SHA; |
81a76618 | 6797 | } else if (match->flow.tp_src == htons(ND_NEIGHBOR_ADVERT)) { |
b459a924 BP |
6798 | may_match |= MAY_ND_TARGET | MAY_ARP_THA; |
6799 | } | |
6800 | } | |
8087f5ff MM |
6801 | } else if (match->flow.dl_type == htons(ETH_TYPE_ARP) || |
6802 | match->flow.dl_type == htons(ETH_TYPE_RARP)) { | |
27527aa0 | 6803 | may_match = MAY_NW_PROTO | MAY_NW_ADDR | MAY_ARP_SHA | MAY_ARP_THA; |
b02475c5 SH |
6804 | } else if (eth_type_mpls(match->flow.dl_type)) { |
6805 | may_match = MAY_MPLS; | |
1c0b7503 | 6806 | } else { |
b459a924 BP |
6807 | may_match = 0; |
6808 | } | |
6809 | ||
6810 | /* Clear the fields that may not be matched. */ | |
81a76618 | 6811 | wc = match->wc; |
b459a924 | 6812 | if (!(may_match & MAY_NW_ADDR)) { |
26720e24 | 6813 | wc.masks.nw_src = wc.masks.nw_dst = htonl(0); |
b459a924 BP |
6814 | } |
6815 | if (!(may_match & MAY_TP_ADDR)) { | |
26720e24 | 6816 | wc.masks.tp_src = wc.masks.tp_dst = htons(0); |
b459a924 BP |
6817 | } |
6818 | if (!(may_match & MAY_NW_PROTO)) { | |
26720e24 | 6819 | wc.masks.nw_proto = 0; |
b459a924 | 6820 | } |
9e44d715 | 6821 | if (!(may_match & MAY_IPVx)) { |
26720e24 BP |
6822 | wc.masks.nw_tos = 0; |
6823 | wc.masks.nw_ttl = 0; | |
b459a924 BP |
6824 | } |
6825 | if (!(may_match & MAY_ARP_SHA)) { | |
74ff3298 | 6826 | WC_UNMASK_FIELD(&wc, arp_sha); |
b459a924 BP |
6827 | } |
6828 | if (!(may_match & MAY_ARP_THA)) { | |
74ff3298 | 6829 | WC_UNMASK_FIELD(&wc, arp_tha); |
b459a924 | 6830 | } |
d78477ec | 6831 | if (!(may_match & MAY_IPV6)) { |
26720e24 BP |
6832 | wc.masks.ipv6_src = wc.masks.ipv6_dst = in6addr_any; |
6833 | wc.masks.ipv6_label = htonl(0); | |
b459a924 BP |
6834 | } |
6835 | if (!(may_match & MAY_ND_TARGET)) { | |
26720e24 | 6836 | wc.masks.nd_target = in6addr_any; |
b459a924 | 6837 | } |
b02475c5 | 6838 | if (!(may_match & MAY_MPLS)) { |
8bfd0fda | 6839 | memset(wc.masks.mpls_lse, 0, sizeof wc.masks.mpls_lse); |
b02475c5 | 6840 | } |
b459a924 BP |
6841 | |
6842 | /* Log any changes. */ | |
81a76618 | 6843 | if (!flow_wildcards_equal(&wc, &match->wc)) { |
3cbd9931 | 6844 | bool log = may_log && !VLOG_DROP_INFO(&bad_ofmsg_rl); |
81a76618 | 6845 | char *pre = log ? match_to_string(match, OFP_DEFAULT_PRIORITY) : NULL; |
b459a924 | 6846 | |
81a76618 BP |
6847 | match->wc = wc; |
6848 | match_zero_wildcarded_fields(match); | |
b459a924 BP |
6849 | |
6850 | if (log) { | |
81a76618 | 6851 | char *post = match_to_string(match, OFP_DEFAULT_PRIORITY); |
b459a924 BP |
6852 | VLOG_INFO("normalization changed ofp_match, details:"); |
6853 | VLOG_INFO(" pre: %s", pre); | |
6854 | VLOG_INFO("post: %s", post); | |
6855 | free(pre); | |
6856 | free(post); | |
6857 | } | |
fa37b408 | 6858 | } |
3f09c339 | 6859 | } |
26c112c2 | 6860 | |
81a76618 | 6861 | /* "Normalizes" the wildcards in 'match'. That means: |
3cbd9931 BP |
6862 | * |
6863 | * 1. If the type of level N is known, then only the valid fields for that | |
6864 | * level may be specified. For example, ARP does not have a TOS field, | |
81a76618 | 6865 | * so nw_tos must be wildcarded if 'match' specifies an ARP flow. |
3cbd9931 | 6866 | * Similarly, IPv4 does not have any IPv6 addresses, so ipv6_src and |
81a76618 | 6867 | * ipv6_dst (and other fields) must be wildcarded if 'match' specifies an |
3cbd9931 BP |
6868 | * IPv4 flow. |
6869 | * | |
6870 | * 2. If the type of level N is not known (or not understood by Open | |
6871 | * vSwitch), then no fields at all for that level may be specified. For | |
6872 | * example, Open vSwitch does not understand SCTP, an L4 protocol, so the | |
81a76618 | 6873 | * L4 fields tp_src and tp_dst must be wildcarded if 'match' specifies an |
3cbd9931 BP |
6874 | * SCTP flow. |
6875 | * | |
81a76618 | 6876 | * If this function changes 'match', it logs a rate-limited informational |
3cbd9931 BP |
6877 | * message. */ |
6878 | void | |
81a76618 | 6879 | ofputil_normalize_match(struct match *match) |
3cbd9931 | 6880 | { |
81a76618 | 6881 | ofputil_normalize_match__(match, true); |
3cbd9931 BP |
6882 | } |
6883 | ||
81a76618 BP |
6884 | /* Same as ofputil_normalize_match() without the logging. Thus, this function |
6885 | * is suitable for a program's internal use, whereas ofputil_normalize_match() | |
3cbd9931 BP |
6886 | * sense for use on flows received from elsewhere (so that a bug in the program |
6887 | * that sent them can be reported and corrected). */ | |
6888 | void | |
81a76618 | 6889 | ofputil_normalize_match_quiet(struct match *match) |
3cbd9931 | 6890 | { |
81a76618 | 6891 | ofputil_normalize_match__(match, false); |
3cbd9931 BP |
6892 | } |
6893 | ||
0ff22822 BP |
6894 | /* Parses a key or a key-value pair from '*stringp'. |
6895 | * | |
6896 | * On success: Stores the key into '*keyp'. Stores the value, if present, into | |
6897 | * '*valuep', otherwise an empty string. Advances '*stringp' past the end of | |
6898 | * the key-value pair, preparing it for another call. '*keyp' and '*valuep' | |
6899 | * are substrings of '*stringp' created by replacing some of its bytes by null | |
6900 | * terminators. Returns true. | |
6901 | * | |
6902 | * If '*stringp' is just white space or commas, sets '*keyp' and '*valuep' to | |
6903 | * NULL and returns false. */ | |
6904 | bool | |
6905 | ofputil_parse_key_value(char **stringp, char **keyp, char **valuep) | |
6906 | { | |
6907 | char *pos, *key, *value; | |
6908 | size_t key_len; | |
6909 | ||
6910 | pos = *stringp; | |
6911 | pos += strspn(pos, ", \t\r\n"); | |
6912 | if (*pos == '\0') { | |
6913 | *keyp = *valuep = NULL; | |
6914 | return false; | |
6915 | } | |
6916 | ||
6917 | key = pos; | |
6918 | key_len = strcspn(pos, ":=(, \t\r\n"); | |
6919 | if (key[key_len] == ':' || key[key_len] == '=') { | |
6920 | /* The value can be separated by a colon. */ | |
6921 | size_t value_len; | |
6922 | ||
6923 | value = key + key_len + 1; | |
6924 | value_len = strcspn(value, ", \t\r\n"); | |
6925 | pos = value + value_len + (value[value_len] != '\0'); | |
6926 | value[value_len] = '\0'; | |
6927 | } else if (key[key_len] == '(') { | |
6928 | /* The value can be surrounded by balanced parentheses. The outermost | |
6929 | * set of parentheses is removed. */ | |
6930 | int level = 1; | |
6931 | size_t value_len; | |
6932 | ||
6933 | value = key + key_len + 1; | |
6934 | for (value_len = 0; level > 0; value_len++) { | |
6935 | switch (value[value_len]) { | |
6936 | case '\0': | |
33cadc50 BP |
6937 | level = 0; |
6938 | break; | |
0ff22822 BP |
6939 | |
6940 | case '(': | |
6941 | level++; | |
6942 | break; | |
6943 | ||
6944 | case ')': | |
6945 | level--; | |
6946 | break; | |
6947 | } | |
6948 | } | |
6949 | value[value_len - 1] = '\0'; | |
6950 | pos = value + value_len; | |
6951 | } else { | |
6952 | /* There might be no value at all. */ | |
6953 | value = key + key_len; /* Will become the empty string below. */ | |
6954 | pos = key + key_len + (key[key_len] != '\0'); | |
6955 | } | |
6956 | key[key_len] = '\0'; | |
6957 | ||
6958 | *stringp = pos; | |
6959 | *keyp = key; | |
6960 | *valuep = value; | |
6961 | return true; | |
6962 | } | |
f8e4867e SH |
6963 | |
6964 | /* Encode a dump ports request for 'port', the encoded message | |
0746a84f | 6965 | * will be for OpenFlow version 'ofp_version'. Returns message |
f8e4867e SH |
6966 | * as a struct ofpbuf. Returns encoded message on success, NULL on error */ |
6967 | struct ofpbuf * | |
4e022ec0 | 6968 | ofputil_encode_dump_ports_request(enum ofp_version ofp_version, ofp_port_t port) |
f8e4867e SH |
6969 | { |
6970 | struct ofpbuf *request; | |
6971 | ||
6972 | switch (ofp_version) { | |
6973 | case OFP10_VERSION: { | |
6974 | struct ofp10_port_stats_request *req; | |
6975 | request = ofpraw_alloc(OFPRAW_OFPST10_PORT_REQUEST, ofp_version, 0); | |
6976 | req = ofpbuf_put_zeros(request, sizeof *req); | |
4e022ec0 | 6977 | req->port_no = htons(ofp_to_u16(port)); |
f8e4867e SH |
6978 | break; |
6979 | } | |
6980 | case OFP11_VERSION: | |
2e1ae200 | 6981 | case OFP12_VERSION: |
c37c0382 | 6982 | case OFP13_VERSION: |
42dccab5 BP |
6983 | case OFP14_VERSION: |
6984 | case OFP15_VERSION: { | |
f8e4867e SH |
6985 | struct ofp11_port_stats_request *req; |
6986 | request = ofpraw_alloc(OFPRAW_OFPST11_PORT_REQUEST, ofp_version, 0); | |
6987 | req = ofpbuf_put_zeros(request, sizeof *req); | |
6988 | req->port_no = ofputil_port_to_ofp11(port); | |
6989 | break; | |
6990 | } | |
6991 | default: | |
428b2edd | 6992 | OVS_NOT_REACHED(); |
f8e4867e SH |
6993 | } |
6994 | ||
6995 | return request; | |
6996 | } | |
6997 | ||
6998 | static void | |
6999 | ofputil_port_stats_to_ofp10(const struct ofputil_port_stats *ops, | |
7000 | struct ofp10_port_stats *ps10) | |
7001 | { | |
4e022ec0 | 7002 | ps10->port_no = htons(ofp_to_u16(ops->port_no)); |
f8e4867e SH |
7003 | memset(ps10->pad, 0, sizeof ps10->pad); |
7004 | put_32aligned_be64(&ps10->rx_packets, htonll(ops->stats.rx_packets)); | |
7005 | put_32aligned_be64(&ps10->tx_packets, htonll(ops->stats.tx_packets)); | |
7006 | put_32aligned_be64(&ps10->rx_bytes, htonll(ops->stats.rx_bytes)); | |
7007 | put_32aligned_be64(&ps10->tx_bytes, htonll(ops->stats.tx_bytes)); | |
7008 | put_32aligned_be64(&ps10->rx_dropped, htonll(ops->stats.rx_dropped)); | |
7009 | put_32aligned_be64(&ps10->tx_dropped, htonll(ops->stats.tx_dropped)); | |
7010 | put_32aligned_be64(&ps10->rx_errors, htonll(ops->stats.rx_errors)); | |
7011 | put_32aligned_be64(&ps10->tx_errors, htonll(ops->stats.tx_errors)); | |
7012 | put_32aligned_be64(&ps10->rx_frame_err, htonll(ops->stats.rx_frame_errors)); | |
7013 | put_32aligned_be64(&ps10->rx_over_err, htonll(ops->stats.rx_over_errors)); | |
7014 | put_32aligned_be64(&ps10->rx_crc_err, htonll(ops->stats.rx_crc_errors)); | |
7015 | put_32aligned_be64(&ps10->collisions, htonll(ops->stats.collisions)); | |
7016 | } | |
7017 | ||
7018 | static void | |
7019 | ofputil_port_stats_to_ofp11(const struct ofputil_port_stats *ops, | |
7020 | struct ofp11_port_stats *ps11) | |
7021 | { | |
7022 | ps11->port_no = ofputil_port_to_ofp11(ops->port_no); | |
7023 | memset(ps11->pad, 0, sizeof ps11->pad); | |
7024 | ps11->rx_packets = htonll(ops->stats.rx_packets); | |
7025 | ps11->tx_packets = htonll(ops->stats.tx_packets); | |
7026 | ps11->rx_bytes = htonll(ops->stats.rx_bytes); | |
7027 | ps11->tx_bytes = htonll(ops->stats.tx_bytes); | |
7028 | ps11->rx_dropped = htonll(ops->stats.rx_dropped); | |
7029 | ps11->tx_dropped = htonll(ops->stats.tx_dropped); | |
7030 | ps11->rx_errors = htonll(ops->stats.rx_errors); | |
7031 | ps11->tx_errors = htonll(ops->stats.tx_errors); | |
7032 | ps11->rx_frame_err = htonll(ops->stats.rx_frame_errors); | |
7033 | ps11->rx_over_err = htonll(ops->stats.rx_over_errors); | |
7034 | ps11->rx_crc_err = htonll(ops->stats.rx_crc_errors); | |
7035 | ps11->collisions = htonll(ops->stats.collisions); | |
7036 | } | |
7037 | ||
2e1ae200 JR |
7038 | static void |
7039 | ofputil_port_stats_to_ofp13(const struct ofputil_port_stats *ops, | |
7040 | struct ofp13_port_stats *ps13) | |
7041 | { | |
7042 | ofputil_port_stats_to_ofp11(ops, &ps13->ps); | |
65e0be10 BP |
7043 | ps13->duration_sec = htonl(ops->duration_sec); |
7044 | ps13->duration_nsec = htonl(ops->duration_nsec); | |
2e1ae200 JR |
7045 | } |
7046 | ||
5469537b BP |
7047 | static void |
7048 | ofputil_append_ofp14_port_stats(const struct ofputil_port_stats *ops, | |
ca6ba700 | 7049 | struct ovs_list *replies) |
5469537b BP |
7050 | { |
7051 | struct ofp14_port_stats_prop_ethernet *eth; | |
7052 | struct ofp14_port_stats *ps14; | |
7053 | struct ofpbuf *reply; | |
7054 | ||
7055 | reply = ofpmp_reserve(replies, sizeof *ps14 + sizeof *eth); | |
7056 | ||
7057 | ps14 = ofpbuf_put_uninit(reply, sizeof *ps14); | |
7058 | ps14->length = htons(sizeof *ps14 + sizeof *eth); | |
7059 | memset(ps14->pad, 0, sizeof ps14->pad); | |
7060 | ps14->port_no = ofputil_port_to_ofp11(ops->port_no); | |
7061 | ps14->duration_sec = htonl(ops->duration_sec); | |
7062 | ps14->duration_nsec = htonl(ops->duration_nsec); | |
7063 | ps14->rx_packets = htonll(ops->stats.rx_packets); | |
7064 | ps14->tx_packets = htonll(ops->stats.tx_packets); | |
7065 | ps14->rx_bytes = htonll(ops->stats.rx_bytes); | |
7066 | ps14->tx_bytes = htonll(ops->stats.tx_bytes); | |
7067 | ps14->rx_dropped = htonll(ops->stats.rx_dropped); | |
7068 | ps14->tx_dropped = htonll(ops->stats.tx_dropped); | |
7069 | ps14->rx_errors = htonll(ops->stats.rx_errors); | |
7070 | ps14->tx_errors = htonll(ops->stats.tx_errors); | |
7071 | ||
303721ee | 7072 | eth = ofpprop_put_zeros(reply, OFPPSPT14_ETHERNET, sizeof *eth); |
5469537b BP |
7073 | eth->rx_frame_err = htonll(ops->stats.rx_frame_errors); |
7074 | eth->rx_over_err = htonll(ops->stats.rx_over_errors); | |
7075 | eth->rx_crc_err = htonll(ops->stats.rx_crc_errors); | |
7076 | eth->collisions = htonll(ops->stats.collisions); | |
7077 | } | |
2e1ae200 | 7078 | |
ad4c35fe | 7079 | /* Encode a ports stat for 'ops' and append it to 'replies'. */ |
f8e4867e | 7080 | void |
ca6ba700 | 7081 | ofputil_append_port_stat(struct ovs_list *replies, |
f8e4867e SH |
7082 | const struct ofputil_port_stats *ops) |
7083 | { | |
e28ac5cf | 7084 | switch (ofpmp_version(replies)) { |
2e1ae200 JR |
7085 | case OFP13_VERSION: { |
7086 | struct ofp13_port_stats *reply = ofpmp_append(replies, sizeof *reply); | |
7087 | ofputil_port_stats_to_ofp13(ops, reply); | |
7088 | break; | |
7089 | } | |
f8e4867e SH |
7090 | case OFP12_VERSION: |
7091 | case OFP11_VERSION: { | |
7092 | struct ofp11_port_stats *reply = ofpmp_append(replies, sizeof *reply); | |
7093 | ofputil_port_stats_to_ofp11(ops, reply); | |
7094 | break; | |
7095 | } | |
7096 | ||
7097 | case OFP10_VERSION: { | |
7098 | struct ofp10_port_stats *reply = ofpmp_append(replies, sizeof *reply); | |
7099 | ofputil_port_stats_to_ofp10(ops, reply); | |
7100 | break; | |
7101 | } | |
7102 | ||
c37c0382 | 7103 | case OFP14_VERSION: |
42dccab5 | 7104 | case OFP15_VERSION: |
5469537b | 7105 | ofputil_append_ofp14_port_stats(ops, replies); |
c37c0382 AC |
7106 | break; |
7107 | ||
f8e4867e | 7108 | default: |
428b2edd | 7109 | OVS_NOT_REACHED(); |
f8e4867e SH |
7110 | } |
7111 | } | |
7112 | ||
7113 | static enum ofperr | |
7114 | ofputil_port_stats_from_ofp10(struct ofputil_port_stats *ops, | |
7115 | const struct ofp10_port_stats *ps10) | |
7116 | { | |
7117 | memset(ops, 0, sizeof *ops); | |
7118 | ||
4e022ec0 | 7119 | ops->port_no = u16_to_ofp(ntohs(ps10->port_no)); |
f8e4867e SH |
7120 | ops->stats.rx_packets = ntohll(get_32aligned_be64(&ps10->rx_packets)); |
7121 | ops->stats.tx_packets = ntohll(get_32aligned_be64(&ps10->tx_packets)); | |
7122 | ops->stats.rx_bytes = ntohll(get_32aligned_be64(&ps10->rx_bytes)); | |
7123 | ops->stats.tx_bytes = ntohll(get_32aligned_be64(&ps10->tx_bytes)); | |
7124 | ops->stats.rx_dropped = ntohll(get_32aligned_be64(&ps10->rx_dropped)); | |
7125 | ops->stats.tx_dropped = ntohll(get_32aligned_be64(&ps10->tx_dropped)); | |
7126 | ops->stats.rx_errors = ntohll(get_32aligned_be64(&ps10->rx_errors)); | |
7127 | ops->stats.tx_errors = ntohll(get_32aligned_be64(&ps10->tx_errors)); | |
7128 | ops->stats.rx_frame_errors = | |
7129 | ntohll(get_32aligned_be64(&ps10->rx_frame_err)); | |
7130 | ops->stats.rx_over_errors = ntohll(get_32aligned_be64(&ps10->rx_over_err)); | |
7131 | ops->stats.rx_crc_errors = ntohll(get_32aligned_be64(&ps10->rx_crc_err)); | |
7132 | ops->stats.collisions = ntohll(get_32aligned_be64(&ps10->collisions)); | |
65e0be10 | 7133 | ops->duration_sec = ops->duration_nsec = UINT32_MAX; |
f8e4867e SH |
7134 | |
7135 | return 0; | |
7136 | } | |
7137 | ||
7138 | static enum ofperr | |
7139 | ofputil_port_stats_from_ofp11(struct ofputil_port_stats *ops, | |
7140 | const struct ofp11_port_stats *ps11) | |
7141 | { | |
7142 | enum ofperr error; | |
7143 | ||
7144 | memset(ops, 0, sizeof *ops); | |
7145 | error = ofputil_port_from_ofp11(ps11->port_no, &ops->port_no); | |
7146 | if (error) { | |
7147 | return error; | |
7148 | } | |
7149 | ||
7150 | ops->stats.rx_packets = ntohll(ps11->rx_packets); | |
7151 | ops->stats.tx_packets = ntohll(ps11->tx_packets); | |
7152 | ops->stats.rx_bytes = ntohll(ps11->rx_bytes); | |
7153 | ops->stats.tx_bytes = ntohll(ps11->tx_bytes); | |
7154 | ops->stats.rx_dropped = ntohll(ps11->rx_dropped); | |
7155 | ops->stats.tx_dropped = ntohll(ps11->tx_dropped); | |
7156 | ops->stats.rx_errors = ntohll(ps11->rx_errors); | |
7157 | ops->stats.tx_errors = ntohll(ps11->tx_errors); | |
7158 | ops->stats.rx_frame_errors = ntohll(ps11->rx_frame_err); | |
7159 | ops->stats.rx_over_errors = ntohll(ps11->rx_over_err); | |
7160 | ops->stats.rx_crc_errors = ntohll(ps11->rx_crc_err); | |
7161 | ops->stats.collisions = ntohll(ps11->collisions); | |
65e0be10 | 7162 | ops->duration_sec = ops->duration_nsec = UINT32_MAX; |
f8e4867e SH |
7163 | |
7164 | return 0; | |
7165 | } | |
7166 | ||
2e1ae200 JR |
7167 | static enum ofperr |
7168 | ofputil_port_stats_from_ofp13(struct ofputil_port_stats *ops, | |
7169 | const struct ofp13_port_stats *ps13) | |
7170 | { | |
65e0be10 | 7171 | enum ofperr error = ofputil_port_stats_from_ofp11(ops, &ps13->ps); |
2e1ae200 | 7172 | if (!error) { |
65e0be10 BP |
7173 | ops->duration_sec = ntohl(ps13->duration_sec); |
7174 | ops->duration_nsec = ntohl(ps13->duration_nsec); | |
2e1ae200 | 7175 | } |
2e1ae200 JR |
7176 | return error; |
7177 | } | |
7178 | ||
5469537b BP |
7179 | static enum ofperr |
7180 | parse_ofp14_port_stats_ethernet_property(const struct ofpbuf *payload, | |
7181 | struct ofputil_port_stats *ops) | |
be0c30df | 7182 | { |
6fd6ed71 | 7183 | const struct ofp14_port_stats_prop_ethernet *eth = payload->data; |
5469537b | 7184 | |
6fd6ed71 | 7185 | if (payload->size != sizeof *eth) { |
5469537b BP |
7186 | return OFPERR_OFPBPC_BAD_LEN; |
7187 | } | |
7188 | ||
7189 | ops->stats.rx_frame_errors = ntohll(eth->rx_frame_err); | |
7190 | ops->stats.rx_over_errors = ntohll(eth->rx_over_err); | |
7191 | ops->stats.rx_crc_errors = ntohll(eth->rx_crc_err); | |
7192 | ops->stats.collisions = ntohll(eth->collisions); | |
7193 | ||
7194 | return 0; | |
7195 | } | |
7196 | ||
7197 | static enum ofperr | |
7198 | ofputil_pull_ofp14_port_stats(struct ofputil_port_stats *ops, | |
7199 | struct ofpbuf *msg) | |
7200 | { | |
7201 | const struct ofp14_port_stats *ps14; | |
7202 | struct ofpbuf properties; | |
7203 | enum ofperr error; | |
7204 | size_t len; | |
7205 | ||
7206 | ps14 = ofpbuf_try_pull(msg, sizeof *ps14); | |
7207 | if (!ps14) { | |
7208 | return OFPERR_OFPBRC_BAD_LEN; | |
7209 | } | |
7210 | ||
7211 | len = ntohs(ps14->length); | |
6fd6ed71 | 7212 | if (len < sizeof *ps14 || len - sizeof *ps14 > msg->size) { |
5469537b | 7213 | return OFPERR_OFPBRC_BAD_LEN; |
be0c30df | 7214 | } |
5469537b BP |
7215 | len -= sizeof *ps14; |
7216 | ofpbuf_use_const(&properties, ofpbuf_pull(msg, len), len); | |
7217 | ||
7218 | error = ofputil_port_from_ofp11(ps14->port_no, &ops->port_no); | |
7219 | if (error) { | |
7220 | return error; | |
7221 | } | |
7222 | ||
7223 | ops->duration_sec = ntohl(ps14->duration_sec); | |
7224 | ops->duration_nsec = ntohl(ps14->duration_nsec); | |
7225 | ops->stats.rx_packets = ntohll(ps14->rx_packets); | |
7226 | ops->stats.tx_packets = ntohll(ps14->tx_packets); | |
7227 | ops->stats.rx_bytes = ntohll(ps14->rx_bytes); | |
7228 | ops->stats.tx_bytes = ntohll(ps14->tx_bytes); | |
7229 | ops->stats.rx_dropped = ntohll(ps14->rx_dropped); | |
7230 | ops->stats.tx_dropped = ntohll(ps14->tx_dropped); | |
7231 | ops->stats.rx_errors = ntohll(ps14->rx_errors); | |
7232 | ops->stats.tx_errors = ntohll(ps14->tx_errors); | |
7233 | ops->stats.rx_frame_errors = UINT64_MAX; | |
7234 | ops->stats.rx_over_errors = UINT64_MAX; | |
7235 | ops->stats.rx_crc_errors = UINT64_MAX; | |
7236 | ops->stats.collisions = UINT64_MAX; | |
7237 | ||
6fd6ed71 | 7238 | while (properties.size > 0) { |
5469537b BP |
7239 | struct ofpbuf payload; |
7240 | enum ofperr error; | |
34a543e3 | 7241 | uint64_t type; |
5469537b | 7242 | |
c5562271 | 7243 | error = ofpprop_pull(&properties, &payload, &type); |
5469537b BP |
7244 | if (error) { |
7245 | return error; | |
7246 | } | |
7247 | ||
7248 | switch (type) { | |
7249 | case OFPPSPT14_ETHERNET: | |
7250 | error = parse_ofp14_port_stats_ethernet_property(&payload, ops); | |
7251 | break; | |
7252 | ||
7253 | default: | |
34a543e3 | 7254 | error = OFPPROP_UNKNOWN(true, "port stats", type); |
5469537b BP |
7255 | break; |
7256 | } | |
7257 | ||
7258 | if (error) { | |
7259 | return error; | |
7260 | } | |
7261 | } | |
7262 | ||
7263 | return 0; | |
be0c30df | 7264 | } |
2e1ae200 | 7265 | |
f8e4867e SH |
7266 | /* Returns the number of port stats elements in OFPTYPE_PORT_STATS_REPLY |
7267 | * message 'oh'. */ | |
7268 | size_t | |
7269 | ofputil_count_port_stats(const struct ofp_header *oh) | |
7270 | { | |
5469537b | 7271 | struct ofputil_port_stats ps; |
f8e4867e | 7272 | struct ofpbuf b; |
5469537b | 7273 | size_t n = 0; |
f8e4867e SH |
7274 | |
7275 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
7276 | ofpraw_pull_assert(&b); | |
5469537b BP |
7277 | while (!ofputil_decode_port_stats(&ps, &b)) { |
7278 | n++; | |
7279 | } | |
7280 | return n; | |
f8e4867e SH |
7281 | } |
7282 | ||
7283 | /* Converts an OFPST_PORT_STATS reply in 'msg' into an abstract | |
7284 | * ofputil_port_stats in 'ps'. | |
7285 | * | |
7286 | * Multiple OFPST_PORT_STATS replies can be packed into a single OpenFlow | |
7287 | * message. Calling this function multiple times for a single 'msg' iterates | |
7288 | * through the replies. The caller must initially leave 'msg''s layer pointers | |
7289 | * null and not modify them between calls. | |
7290 | * | |
7291 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
7292 | * otherwise a positive errno value. */ | |
7293 | int | |
7294 | ofputil_decode_port_stats(struct ofputil_port_stats *ps, struct ofpbuf *msg) | |
7295 | { | |
7296 | enum ofperr error; | |
7297 | enum ofpraw raw; | |
7298 | ||
6fd6ed71 | 7299 | error = (msg->header ? ofpraw_decode(&raw, msg->header) |
f8e4867e SH |
7300 | : ofpraw_pull(&raw, msg)); |
7301 | if (error) { | |
7302 | return error; | |
7303 | } | |
7304 | ||
6fd6ed71 | 7305 | if (!msg->size) { |
f8e4867e | 7306 | return EOF; |
5469537b BP |
7307 | } else if (raw == OFPRAW_OFPST14_PORT_REPLY) { |
7308 | return ofputil_pull_ofp14_port_stats(ps, msg); | |
2e1ae200 JR |
7309 | } else if (raw == OFPRAW_OFPST13_PORT_REPLY) { |
7310 | const struct ofp13_port_stats *ps13; | |
7311 | ||
7312 | ps13 = ofpbuf_try_pull(msg, sizeof *ps13); | |
7313 | if (!ps13) { | |
7314 | goto bad_len; | |
7315 | } | |
7316 | return ofputil_port_stats_from_ofp13(ps, ps13); | |
f8e4867e SH |
7317 | } else if (raw == OFPRAW_OFPST11_PORT_REPLY) { |
7318 | const struct ofp11_port_stats *ps11; | |
7319 | ||
7320 | ps11 = ofpbuf_try_pull(msg, sizeof *ps11); | |
7321 | if (!ps11) { | |
2e1ae200 | 7322 | goto bad_len; |
f8e4867e SH |
7323 | } |
7324 | return ofputil_port_stats_from_ofp11(ps, ps11); | |
7325 | } else if (raw == OFPRAW_OFPST10_PORT_REPLY) { | |
7326 | const struct ofp10_port_stats *ps10; | |
7327 | ||
7328 | ps10 = ofpbuf_try_pull(msg, sizeof *ps10); | |
7329 | if (!ps10) { | |
2e1ae200 | 7330 | goto bad_len; |
f8e4867e SH |
7331 | } |
7332 | return ofputil_port_stats_from_ofp10(ps, ps10); | |
7333 | } else { | |
428b2edd | 7334 | OVS_NOT_REACHED(); |
f8e4867e SH |
7335 | } |
7336 | ||
2e1ae200 | 7337 | bad_len: |
437d0d22 | 7338 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_PORT reply has %"PRIu32" leftover " |
6fd6ed71 | 7339 | "bytes at end", msg->size); |
2e1ae200 | 7340 | return OFPERR_OFPBRC_BAD_LEN; |
f8e4867e SH |
7341 | } |
7342 | ||
7343 | /* Parse a port status request message into a 16 bit OpenFlow 1.0 | |
7344 | * port number and stores the latter in '*ofp10_port'. | |
7345 | * Returns 0 if successful, otherwise an OFPERR_* number. */ | |
7346 | enum ofperr | |
7347 | ofputil_decode_port_stats_request(const struct ofp_header *request, | |
4e022ec0 | 7348 | ofp_port_t *ofp10_port) |
f8e4867e SH |
7349 | { |
7350 | switch ((enum ofp_version)request->version) { | |
42dccab5 | 7351 | case OFP15_VERSION: |
5469537b | 7352 | case OFP14_VERSION: |
2e1ae200 | 7353 | case OFP13_VERSION: |
f8e4867e SH |
7354 | case OFP12_VERSION: |
7355 | case OFP11_VERSION: { | |
7356 | const struct ofp11_port_stats_request *psr11 = ofpmsg_body(request); | |
7357 | return ofputil_port_from_ofp11(psr11->port_no, ofp10_port); | |
7358 | } | |
7359 | ||
7360 | case OFP10_VERSION: { | |
7361 | const struct ofp10_port_stats_request *psr10 = ofpmsg_body(request); | |
4e022ec0 | 7362 | *ofp10_port = u16_to_ofp(ntohs(psr10->port_no)); |
f8e4867e SH |
7363 | return 0; |
7364 | } | |
7365 | ||
7366 | default: | |
428b2edd | 7367 | OVS_NOT_REACHED(); |
f8e4867e SH |
7368 | } |
7369 | } | |
64626975 | 7370 | |
7395c052 NZ |
7371 | /* Frees all of the "struct ofputil_bucket"s in the 'buckets' list. */ |
7372 | void | |
ca6ba700 | 7373 | ofputil_bucket_list_destroy(struct ovs_list *buckets) |
7395c052 | 7374 | { |
5f03c983 | 7375 | struct ofputil_bucket *bucket; |
7395c052 | 7376 | |
5f03c983 | 7377 | LIST_FOR_EACH_POP (bucket, list_node, buckets) { |
7395c052 NZ |
7378 | free(bucket->ofpacts); |
7379 | free(bucket); | |
7380 | } | |
7381 | } | |
7382 | ||
103b4866 SH |
7383 | /* Clones 'bucket' and its ofpacts data */ |
7384 | static struct ofputil_bucket * | |
7385 | ofputil_bucket_clone_data(const struct ofputil_bucket *bucket) | |
7386 | { | |
7387 | struct ofputil_bucket *new; | |
7388 | ||
7389 | new = xmemdup(bucket, sizeof *bucket); | |
7390 | new->ofpacts = xmemdup(bucket->ofpacts, bucket->ofpacts_len); | |
7391 | ||
7392 | return new; | |
7393 | } | |
7394 | ||
7395 | /* Clones each of the buckets in the list 'src' appending them | |
7396 | * in turn to 'dest' which should be an initialised list. | |
7397 | * An exception is that if the pointer value of a bucket in 'src' | |
7398 | * matches 'skip' then it is not cloned or appended to 'dest'. | |
7399 | * This allows all of 'src' or 'all of 'src' except 'skip' to | |
7400 | * be cloned and appended to 'dest'. */ | |
7401 | void | |
ca6ba700 | 7402 | ofputil_bucket_clone_list(struct ovs_list *dest, const struct ovs_list *src, |
103b4866 SH |
7403 | const struct ofputil_bucket *skip) |
7404 | { | |
7405 | struct ofputil_bucket *bucket; | |
7406 | ||
7407 | LIST_FOR_EACH (bucket, list_node, src) { | |
7408 | struct ofputil_bucket *new_bucket; | |
7409 | ||
7410 | if (bucket == skip) { | |
7411 | continue; | |
7412 | } | |
7413 | ||
7414 | new_bucket = ofputil_bucket_clone_data(bucket); | |
7415 | list_push_back(dest, &new_bucket->list_node); | |
7416 | } | |
7417 | } | |
7418 | ||
7419 | /* Find a bucket in the list 'buckets' whose bucket id is 'bucket_id' | |
7420 | * Returns the first bucket found or NULL if no buckets are found. */ | |
7421 | struct ofputil_bucket * | |
ca6ba700 | 7422 | ofputil_bucket_find(const struct ovs_list *buckets, uint32_t bucket_id) |
103b4866 SH |
7423 | { |
7424 | struct ofputil_bucket *bucket; | |
7425 | ||
7426 | if (bucket_id > OFPG15_BUCKET_MAX) { | |
7427 | return NULL; | |
7428 | } | |
7429 | ||
7430 | LIST_FOR_EACH (bucket, list_node, buckets) { | |
7431 | if (bucket->bucket_id == bucket_id) { | |
7432 | return bucket; | |
7433 | } | |
7434 | } | |
7435 | ||
7436 | return NULL; | |
7437 | } | |
7438 | ||
7439 | /* Returns true if more than one bucket in the list 'buckets' | |
7440 | * have the same bucket id. Returns false otherwise. */ | |
18ac06d3 | 7441 | bool |
ca6ba700 | 7442 | ofputil_bucket_check_duplicate_id(const struct ovs_list *buckets) |
18ac06d3 SH |
7443 | { |
7444 | struct ofputil_bucket *i, *j; | |
7445 | ||
7446 | LIST_FOR_EACH (i, list_node, buckets) { | |
7447 | LIST_FOR_EACH_REVERSE (j, list_node, buckets) { | |
7448 | if (i == j) { | |
7449 | break; | |
7450 | } | |
7451 | if (i->bucket_id == j->bucket_id) { | |
7452 | return true; | |
7453 | } | |
7454 | } | |
7455 | } | |
7456 | ||
7457 | return false; | |
7458 | } | |
7459 | ||
103b4866 SH |
7460 | /* Returns the bucket at the front of the list 'buckets'. |
7461 | * Undefined if 'buckets is empty. */ | |
7462 | struct ofputil_bucket * | |
ca6ba700 | 7463 | ofputil_bucket_list_front(const struct ovs_list *buckets) |
103b4866 SH |
7464 | { |
7465 | static struct ofputil_bucket *bucket; | |
7466 | ||
7467 | ASSIGN_CONTAINER(bucket, list_front(buckets), list_node); | |
7468 | ||
7469 | return bucket; | |
7470 | } | |
7471 | ||
7472 | /* Returns the bucket at the back of the list 'buckets'. | |
7473 | * Undefined if 'buckets is empty. */ | |
7474 | struct ofputil_bucket * | |
ca6ba700 | 7475 | ofputil_bucket_list_back(const struct ovs_list *buckets) |
103b4866 SH |
7476 | { |
7477 | static struct ofputil_bucket *bucket; | |
7478 | ||
7479 | ASSIGN_CONTAINER(bucket, list_back(buckets), list_node); | |
7480 | ||
7481 | return bucket; | |
7482 | } | |
7483 | ||
7395c052 NZ |
7484 | /* Returns an OpenFlow group stats request for OpenFlow version 'ofp_version', |
7485 | * that requests stats for group 'group_id'. (Use OFPG_ALL to request stats | |
7486 | * for all groups.) | |
7487 | * | |
7488 | * Group statistics include packet and byte counts for each group. */ | |
7489 | struct ofpbuf * | |
7490 | ofputil_encode_group_stats_request(enum ofp_version ofp_version, | |
7491 | uint32_t group_id) | |
7492 | { | |
7493 | struct ofpbuf *request; | |
7494 | ||
7495 | switch (ofp_version) { | |
7496 | case OFP10_VERSION: | |
7497 | ovs_fatal(0, "dump-group-stats needs OpenFlow 1.1 or later " | |
7498 | "(\'-O OpenFlow11\')"); | |
7499 | case OFP11_VERSION: | |
7500 | case OFP12_VERSION: | |
c37c0382 | 7501 | case OFP13_VERSION: |
42dccab5 BP |
7502 | case OFP14_VERSION: |
7503 | case OFP15_VERSION: { | |
7395c052 NZ |
7504 | struct ofp11_group_stats_request *req; |
7505 | request = ofpraw_alloc(OFPRAW_OFPST11_GROUP_REQUEST, ofp_version, 0); | |
7506 | req = ofpbuf_put_zeros(request, sizeof *req); | |
7507 | req->group_id = htonl(group_id); | |
7508 | break; | |
7509 | } | |
7510 | default: | |
428b2edd | 7511 | OVS_NOT_REACHED(); |
7395c052 NZ |
7512 | } |
7513 | ||
7514 | return request; | |
7515 | } | |
7516 | ||
bc65c25a SH |
7517 | void |
7518 | ofputil_uninit_group_desc(struct ofputil_group_desc *gd) | |
7519 | { | |
7520 | ofputil_bucket_list_destroy(&gd->buckets); | |
7521 | free(&gd->props.fields); | |
7522 | } | |
7523 | ||
19187a71 BP |
7524 | /* Decodes the OpenFlow group description request in 'oh', returning the group |
7525 | * whose description is requested, or OFPG_ALL if stats for all groups was | |
7526 | * requested. */ | |
7527 | uint32_t | |
7528 | ofputil_decode_group_desc_request(const struct ofp_header *oh) | |
7529 | { | |
7530 | struct ofpbuf request; | |
7531 | enum ofpraw raw; | |
7532 | ||
7533 | ofpbuf_use_const(&request, oh, ntohs(oh->length)); | |
7534 | raw = ofpraw_pull_assert(&request); | |
7535 | if (raw == OFPRAW_OFPST11_GROUP_DESC_REQUEST) { | |
7536 | return OFPG_ALL; | |
7537 | } else if (raw == OFPRAW_OFPST15_GROUP_DESC_REQUEST) { | |
7538 | ovs_be32 *group_id = ofpbuf_pull(&request, sizeof *group_id); | |
7539 | return ntohl(*group_id); | |
7540 | } else { | |
7541 | OVS_NOT_REACHED(); | |
7542 | } | |
7543 | } | |
7544 | ||
7395c052 | 7545 | /* Returns an OpenFlow group description request for OpenFlow version |
19187a71 BP |
7546 | * 'ofp_version', that requests stats for group 'group_id'. Use OFPG_ALL to |
7547 | * request stats for all groups (OpenFlow 1.4 and earlier always request all | |
7548 | * groups). | |
7395c052 NZ |
7549 | * |
7550 | * Group descriptions include the bucket and action configuration for each | |
7551 | * group. */ | |
7552 | struct ofpbuf * | |
19187a71 BP |
7553 | ofputil_encode_group_desc_request(enum ofp_version ofp_version, |
7554 | uint32_t group_id) | |
7395c052 NZ |
7555 | { |
7556 | struct ofpbuf *request; | |
7557 | ||
7558 | switch (ofp_version) { | |
7559 | case OFP10_VERSION: | |
7560 | ovs_fatal(0, "dump-groups needs OpenFlow 1.1 or later " | |
7561 | "(\'-O OpenFlow11\')"); | |
7562 | case OFP11_VERSION: | |
7563 | case OFP12_VERSION: | |
c37c0382 AC |
7564 | case OFP13_VERSION: |
7565 | case OFP14_VERSION: | |
19187a71 BP |
7566 | request = ofpraw_alloc(OFPRAW_OFPST11_GROUP_DESC_REQUEST, |
7567 | ofp_version, 0); | |
7568 | break; | |
d4d3f33e MT |
7569 | case OFP15_VERSION:{ |
7570 | struct ofp15_group_desc_request *req; | |
19187a71 BP |
7571 | request = ofpraw_alloc(OFPRAW_OFPST15_GROUP_DESC_REQUEST, |
7572 | ofp_version, 0); | |
d4d3f33e MT |
7573 | req = ofpbuf_put_zeros(request, sizeof *req); |
7574 | req->group_id = htonl(group_id); | |
7395c052 | 7575 | break; |
d4d3f33e | 7576 | } |
7395c052 | 7577 | default: |
428b2edd | 7578 | OVS_NOT_REACHED(); |
7395c052 NZ |
7579 | } |
7580 | ||
7581 | return request; | |
7582 | } | |
7583 | ||
dcbe78ad | 7584 | static void |
63759e71 AZ |
7585 | ofputil_group_bucket_counters_to_ofp11(const struct ofputil_group_stats *gs, |
7586 | struct ofp11_bucket_counter bucket_cnts[]) | |
7395c052 | 7587 | { |
7395c052 NZ |
7588 | int i; |
7589 | ||
dcbe78ad AZ |
7590 | for (i = 0; i < gs->n_buckets; i++) { |
7591 | bucket_cnts[i].packet_count = htonll(gs->bucket_stats[i].packet_count); | |
7592 | bucket_cnts[i].byte_count = htonll(gs->bucket_stats[i].byte_count); | |
7395c052 | 7593 | } |
7395c052 NZ |
7594 | } |
7595 | ||
7596 | static void | |
dcbe78ad | 7597 | ofputil_group_stats_to_ofp11(const struct ofputil_group_stats *gs, |
63759e71 AZ |
7598 | struct ofp11_group_stats *gs11, size_t length, |
7599 | struct ofp11_bucket_counter bucket_cnts[]) | |
7395c052 | 7600 | { |
63759e71 AZ |
7601 | memset(gs11, 0, sizeof *gs11); |
7602 | gs11->length = htons(length); | |
7603 | gs11->group_id = htonl(gs->group_id); | |
7604 | gs11->ref_count = htonl(gs->ref_count); | |
7605 | gs11->packet_count = htonll(gs->packet_count); | |
7606 | gs11->byte_count = htonll(gs->byte_count); | |
7607 | ofputil_group_bucket_counters_to_ofp11(gs, bucket_cnts); | |
dcbe78ad | 7608 | } |
7395c052 | 7609 | |
dcbe78ad AZ |
7610 | static void |
7611 | ofputil_group_stats_to_ofp13(const struct ofputil_group_stats *gs, | |
63759e71 AZ |
7612 | struct ofp13_group_stats *gs13, size_t length, |
7613 | struct ofp11_bucket_counter bucket_cnts[]) | |
dcbe78ad | 7614 | { |
63759e71 | 7615 | ofputil_group_stats_to_ofp11(gs, &gs13->gs, length, bucket_cnts); |
dcbe78ad AZ |
7616 | gs13->duration_sec = htonl(gs->duration_sec); |
7617 | gs13->duration_nsec = htonl(gs->duration_nsec); | |
63759e71 | 7618 | |
7395c052 NZ |
7619 | } |
7620 | ||
dcbe78ad | 7621 | /* Encodes 'gs' properly for the format of the list of group statistics |
7395c052 NZ |
7622 | * replies already begun in 'replies' and appends it to the list. 'replies' |
7623 | * must have originally been initialized with ofpmp_init(). */ | |
7624 | void | |
ca6ba700 | 7625 | ofputil_append_group_stats(struct ovs_list *replies, |
dcbe78ad | 7626 | const struct ofputil_group_stats *gs) |
7395c052 | 7627 | { |
63759e71 AZ |
7628 | size_t bucket_counter_size; |
7629 | struct ofp11_bucket_counter *bucket_counters; | |
dcbe78ad | 7630 | size_t length; |
7395c052 | 7631 | |
63759e71 AZ |
7632 | bucket_counter_size = gs->n_buckets * sizeof(struct ofp11_bucket_counter); |
7633 | ||
e28ac5cf | 7634 | switch (ofpmp_version(replies)) { |
7395c052 | 7635 | case OFP11_VERSION: |
dcbe78ad | 7636 | case OFP12_VERSION:{ |
63759e71 | 7637 | struct ofp11_group_stats *gs11; |
dcbe78ad | 7638 | |
63759e71 AZ |
7639 | length = sizeof *gs11 + bucket_counter_size; |
7640 | gs11 = ofpmp_append(replies, length); | |
7641 | bucket_counters = (struct ofp11_bucket_counter *)(gs11 + 1); | |
7642 | ofputil_group_stats_to_ofp11(gs, gs11, length, bucket_counters); | |
dcbe78ad AZ |
7643 | break; |
7644 | } | |
7395c052 NZ |
7645 | |
7646 | case OFP13_VERSION: | |
42dccab5 BP |
7647 | case OFP14_VERSION: |
7648 | case OFP15_VERSION: { | |
63759e71 | 7649 | struct ofp13_group_stats *gs13; |
7395c052 | 7650 | |
63759e71 AZ |
7651 | length = sizeof *gs13 + bucket_counter_size; |
7652 | gs13 = ofpmp_append(replies, length); | |
7653 | bucket_counters = (struct ofp11_bucket_counter *)(gs13 + 1); | |
7654 | ofputil_group_stats_to_ofp13(gs, gs13, length, bucket_counters); | |
dcbe78ad AZ |
7655 | break; |
7656 | } | |
c37c0382 | 7657 | |
7395c052 NZ |
7658 | case OFP10_VERSION: |
7659 | default: | |
428b2edd | 7660 | OVS_NOT_REACHED(); |
7395c052 NZ |
7661 | } |
7662 | } | |
7395c052 NZ |
7663 | /* Returns an OpenFlow group features request for OpenFlow version |
7664 | * 'ofp_version'. */ | |
7665 | struct ofpbuf * | |
7666 | ofputil_encode_group_features_request(enum ofp_version ofp_version) | |
7667 | { | |
7668 | struct ofpbuf *request = NULL; | |
7669 | ||
7670 | switch (ofp_version) { | |
7671 | case OFP10_VERSION: | |
7672 | case OFP11_VERSION: | |
7673 | ovs_fatal(0, "dump-group-features needs OpenFlow 1.2 or later " | |
7674 | "(\'-O OpenFlow12\')"); | |
7675 | case OFP12_VERSION: | |
c37c0382 AC |
7676 | case OFP13_VERSION: |
7677 | case OFP14_VERSION: | |
42dccab5 | 7678 | case OFP15_VERSION: |
7395c052 | 7679 | request = ofpraw_alloc(OFPRAW_OFPST12_GROUP_FEATURES_REQUEST, |
c37c0382 | 7680 | ofp_version, 0); |
7395c052 | 7681 | break; |
7395c052 | 7682 | default: |
428b2edd | 7683 | OVS_NOT_REACHED(); |
7395c052 NZ |
7684 | } |
7685 | ||
7686 | return request; | |
7687 | } | |
7688 | ||
7689 | /* Returns a OpenFlow message that encodes 'features' properly as a reply to | |
7690 | * group features request 'request'. */ | |
7691 | struct ofpbuf * | |
7692 | ofputil_encode_group_features_reply( | |
7693 | const struct ofputil_group_features *features, | |
7694 | const struct ofp_header *request) | |
7695 | { | |
7696 | struct ofp12_group_features_stats *ogf; | |
7697 | struct ofpbuf *reply; | |
08d1e234 | 7698 | int i; |
7395c052 NZ |
7699 | |
7700 | reply = ofpraw_alloc_xid(OFPRAW_OFPST12_GROUP_FEATURES_REPLY, | |
7701 | request->version, request->xid, 0); | |
7702 | ogf = ofpbuf_put_zeros(reply, sizeof *ogf); | |
7703 | ogf->types = htonl(features->types); | |
7704 | ogf->capabilities = htonl(features->capabilities); | |
08d1e234 BP |
7705 | for (i = 0; i < OFPGT12_N_TYPES; i++) { |
7706 | ogf->max_groups[i] = htonl(features->max_groups[i]); | |
7707 | ogf->actions[i] = ofpact_bitmap_to_openflow(features->ofpacts[i], | |
7708 | request->version); | |
7709 | } | |
7395c052 NZ |
7710 | |
7711 | return reply; | |
7712 | } | |
7713 | ||
7714 | /* Decodes group features reply 'oh' into 'features'. */ | |
7715 | void | |
7716 | ofputil_decode_group_features_reply(const struct ofp_header *oh, | |
7717 | struct ofputil_group_features *features) | |
7718 | { | |
7719 | const struct ofp12_group_features_stats *ogf = ofpmsg_body(oh); | |
08d1e234 | 7720 | int i; |
7395c052 NZ |
7721 | |
7722 | features->types = ntohl(ogf->types); | |
7723 | features->capabilities = ntohl(ogf->capabilities); | |
08d1e234 BP |
7724 | for (i = 0; i < OFPGT12_N_TYPES; i++) { |
7725 | features->max_groups[i] = ntohl(ogf->max_groups[i]); | |
7726 | features->ofpacts[i] = ofpact_bitmap_from_openflow( | |
7727 | ogf->actions[i], oh->version); | |
7728 | } | |
7395c052 NZ |
7729 | } |
7730 | ||
7731 | /* Parse a group status request message into a 32 bit OpenFlow 1.1 | |
7732 | * group ID and stores the latter in '*group_id'. | |
7733 | * Returns 0 if successful, otherwise an OFPERR_* number. */ | |
7734 | enum ofperr | |
7735 | ofputil_decode_group_stats_request(const struct ofp_header *request, | |
7736 | uint32_t *group_id) | |
7737 | { | |
7738 | const struct ofp11_group_stats_request *gsr11 = ofpmsg_body(request); | |
7739 | *group_id = ntohl(gsr11->group_id); | |
7740 | return 0; | |
7741 | } | |
7742 | ||
7743 | /* Converts a group stats reply in 'msg' into an abstract ofputil_group_stats | |
646b2a9c SH |
7744 | * in 'gs'. Assigns freshly allocated memory to gs->bucket_stats for the |
7745 | * caller to eventually free. | |
7395c052 NZ |
7746 | * |
7747 | * Multiple group stats replies can be packed into a single OpenFlow message. | |
7748 | * Calling this function multiple times for a single 'msg' iterates through the | |
7749 | * replies. The caller must initially leave 'msg''s layer pointers null and | |
7750 | * not modify them between calls. | |
7751 | * | |
7752 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
7753 | * otherwise a positive errno value. */ | |
7754 | int | |
7755 | ofputil_decode_group_stats_reply(struct ofpbuf *msg, | |
7756 | struct ofputil_group_stats *gs) | |
7757 | { | |
7758 | struct ofp11_bucket_counter *obc; | |
7759 | struct ofp11_group_stats *ogs11; | |
7760 | enum ofpraw raw; | |
7761 | enum ofperr error; | |
7762 | size_t base_len; | |
7763 | size_t length; | |
7764 | size_t i; | |
7765 | ||
646b2a9c | 7766 | gs->bucket_stats = NULL; |
6fd6ed71 | 7767 | error = (msg->header ? ofpraw_decode(&raw, msg->header) |
7395c052 NZ |
7768 | : ofpraw_pull(&raw, msg)); |
7769 | if (error) { | |
7770 | return error; | |
7771 | } | |
7772 | ||
6fd6ed71 | 7773 | if (!msg->size) { |
7395c052 NZ |
7774 | return EOF; |
7775 | } | |
7776 | ||
7777 | if (raw == OFPRAW_OFPST11_GROUP_REPLY) { | |
7778 | base_len = sizeof *ogs11; | |
7779 | ogs11 = ofpbuf_try_pull(msg, sizeof *ogs11); | |
7780 | gs->duration_sec = gs->duration_nsec = UINT32_MAX; | |
7781 | } else if (raw == OFPRAW_OFPST13_GROUP_REPLY) { | |
7782 | struct ofp13_group_stats *ogs13; | |
7783 | ||
7784 | base_len = sizeof *ogs13; | |
7785 | ogs13 = ofpbuf_try_pull(msg, sizeof *ogs13); | |
7786 | if (ogs13) { | |
7787 | ogs11 = &ogs13->gs; | |
7788 | gs->duration_sec = ntohl(ogs13->duration_sec); | |
7789 | gs->duration_nsec = ntohl(ogs13->duration_nsec); | |
7790 | } else { | |
7791 | ogs11 = NULL; | |
7792 | } | |
7793 | } else { | |
428b2edd | 7794 | OVS_NOT_REACHED(); |
7395c052 NZ |
7795 | } |
7796 | ||
7797 | if (!ogs11) { | |
437d0d22 | 7798 | VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply has %"PRIu32" leftover bytes at end", |
6fd6ed71 | 7799 | ofpraw_get_name(raw), msg->size); |
7395c052 NZ |
7800 | return OFPERR_OFPBRC_BAD_LEN; |
7801 | } | |
7802 | length = ntohs(ogs11->length); | |
7803 | if (length < sizeof base_len) { | |
34582733 | 7804 | VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply claims invalid length %"PRIuSIZE, |
7395c052 NZ |
7805 | ofpraw_get_name(raw), length); |
7806 | return OFPERR_OFPBRC_BAD_LEN; | |
7807 | } | |
7808 | ||
7809 | gs->group_id = ntohl(ogs11->group_id); | |
7810 | gs->ref_count = ntohl(ogs11->ref_count); | |
7811 | gs->packet_count = ntohll(ogs11->packet_count); | |
7812 | gs->byte_count = ntohll(ogs11->byte_count); | |
7813 | ||
7814 | gs->n_buckets = (length - base_len) / sizeof *obc; | |
7815 | obc = ofpbuf_try_pull(msg, gs->n_buckets * sizeof *obc); | |
7816 | if (!obc) { | |
437d0d22 | 7817 | VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply has %"PRIu32" leftover bytes at end", |
6fd6ed71 | 7818 | ofpraw_get_name(raw), msg->size); |
7395c052 NZ |
7819 | return OFPERR_OFPBRC_BAD_LEN; |
7820 | } | |
7821 | ||
646b2a9c | 7822 | gs->bucket_stats = xmalloc(gs->n_buckets * sizeof *gs->bucket_stats); |
7395c052 NZ |
7823 | for (i = 0; i < gs->n_buckets; i++) { |
7824 | gs->bucket_stats[i].packet_count = ntohll(obc[i].packet_count); | |
7825 | gs->bucket_stats[i].byte_count = ntohll(obc[i].byte_count); | |
7826 | } | |
7827 | ||
7828 | return 0; | |
7829 | } | |
7830 | ||
5097fee5 SH |
7831 | static void |
7832 | ofputil_put_ofp11_bucket(const struct ofputil_bucket *bucket, | |
7833 | struct ofpbuf *openflow, enum ofp_version ofp_version) | |
7834 | { | |
7835 | struct ofp11_bucket *ob; | |
7836 | size_t start; | |
7837 | ||
6fd6ed71 | 7838 | start = openflow->size; |
5097fee5 SH |
7839 | ofpbuf_put_zeros(openflow, sizeof *ob); |
7840 | ofpacts_put_openflow_actions(bucket->ofpacts, bucket->ofpacts_len, | |
7841 | openflow, ofp_version); | |
7842 | ob = ofpbuf_at_assert(openflow, start, sizeof *ob); | |
6fd6ed71 | 7843 | ob->len = htons(openflow->size - start); |
5097fee5 SH |
7844 | ob->weight = htons(bucket->weight); |
7845 | ob->watch_port = ofputil_port_to_ofp11(bucket->watch_port); | |
7846 | ob->watch_group = htonl(bucket->watch_group); | |
7847 | } | |
7848 | ||
18ac06d3 SH |
7849 | static void |
7850 | ofputil_put_ofp15_bucket(const struct ofputil_bucket *bucket, | |
7851 | uint32_t bucket_id, enum ofp11_group_type group_type, | |
7852 | struct ofpbuf *openflow, enum ofp_version ofp_version) | |
7853 | { | |
7854 | struct ofp15_bucket *ob; | |
7855 | size_t start, actions_start, actions_len; | |
7856 | ||
6fd6ed71 | 7857 | start = openflow->size; |
18ac06d3 SH |
7858 | ofpbuf_put_zeros(openflow, sizeof *ob); |
7859 | ||
6fd6ed71 | 7860 | actions_start = openflow->size; |
18ac06d3 SH |
7861 | ofpacts_put_openflow_actions(bucket->ofpacts, bucket->ofpacts_len, |
7862 | openflow, ofp_version); | |
6fd6ed71 | 7863 | actions_len = openflow->size - actions_start; |
18ac06d3 SH |
7864 | |
7865 | if (group_type == OFPGT11_SELECT) { | |
b611d3ac | 7866 | ofpprop_put_u16(openflow, OFPGBPT15_WEIGHT, bucket->weight); |
18ac06d3 SH |
7867 | } |
7868 | if (bucket->watch_port != OFPP_ANY) { | |
b611d3ac BP |
7869 | ofpprop_put_be32(openflow, OFPGBPT15_WATCH_PORT, |
7870 | ofputil_port_to_ofp11(bucket->watch_port)); | |
18ac06d3 SH |
7871 | } |
7872 | if (bucket->watch_group != OFPG_ANY) { | |
b611d3ac | 7873 | ofpprop_put_u32(openflow, OFPGBPT15_WATCH_GROUP, bucket->watch_group); |
18ac06d3 SH |
7874 | } |
7875 | ||
7876 | ob = ofpbuf_at_assert(openflow, start, sizeof *ob); | |
6fd6ed71 | 7877 | ob->len = htons(openflow->size - start); |
79870963 | 7878 | ob->action_array_len = htons(actions_len); |
18ac06d3 SH |
7879 | ob->bucket_id = htonl(bucket_id); |
7880 | } | |
7881 | ||
53eb84a5 SH |
7882 | static void |
7883 | ofputil_put_group_prop_ntr_selection_method(enum ofp_version ofp_version, | |
7884 | const struct ofputil_group_props *gp, | |
7885 | struct ofpbuf *openflow) | |
7886 | { | |
7887 | struct ntr_group_prop_selection_method *prop; | |
7888 | size_t start; | |
7889 | ||
7890 | start = openflow->size; | |
7891 | ofpbuf_put_zeros(openflow, sizeof *prop); | |
7892 | oxm_put_field_array(openflow, &gp->fields, ofp_version); | |
7893 | prop = ofpbuf_at_assert(openflow, start, sizeof *prop); | |
7894 | prop->type = htons(OFPGPT15_EXPERIMENTER); | |
7895 | prop->experimenter = htonl(NTR_VENDOR_ID); | |
7896 | prop->exp_type = htonl(NTRT_SELECTION_METHOD); | |
7897 | strcpy(prop->selection_method, gp->selection_method); | |
7898 | prop->selection_method_param = htonll(gp->selection_method_param); | |
c5562271 | 7899 | ofpprop_end(openflow, start); |
53eb84a5 SH |
7900 | } |
7901 | ||
5be50252 SH |
7902 | static void |
7903 | ofputil_append_ofp11_group_desc_reply(const struct ofputil_group_desc *gds, | |
1667bb34 | 7904 | const struct ovs_list *buckets, |
ca6ba700 | 7905 | struct ovs_list *replies, |
5be50252 | 7906 | enum ofp_version version) |
7395c052 NZ |
7907 | { |
7908 | struct ofpbuf *reply = ofpbuf_from_list(list_back(replies)); | |
7909 | struct ofp11_group_desc_stats *ogds; | |
7910 | struct ofputil_bucket *bucket; | |
7911 | size_t start_ogds; | |
7912 | ||
6fd6ed71 | 7913 | start_ogds = reply->size; |
7395c052 NZ |
7914 | ofpbuf_put_zeros(reply, sizeof *ogds); |
7915 | LIST_FOR_EACH (bucket, list_node, buckets) { | |
5097fee5 | 7916 | ofputil_put_ofp11_bucket(bucket, reply, version); |
7395c052 NZ |
7917 | } |
7918 | ogds = ofpbuf_at_assert(reply, start_ogds, sizeof *ogds); | |
6fd6ed71 | 7919 | ogds->length = htons(reply->size - start_ogds); |
7395c052 NZ |
7920 | ogds->type = gds->type; |
7921 | ogds->group_id = htonl(gds->group_id); | |
7922 | ||
7923 | ofpmp_postappend(replies, start_ogds); | |
7924 | } | |
7925 | ||
18ac06d3 SH |
7926 | static void |
7927 | ofputil_append_ofp15_group_desc_reply(const struct ofputil_group_desc *gds, | |
1667bb34 | 7928 | const struct ovs_list *buckets, |
ca6ba700 | 7929 | struct ovs_list *replies, |
18ac06d3 SH |
7930 | enum ofp_version version) |
7931 | { | |
7932 | struct ofpbuf *reply = ofpbuf_from_list(list_back(replies)); | |
7933 | struct ofp15_group_desc_stats *ogds; | |
7934 | struct ofputil_bucket *bucket; | |
7935 | size_t start_ogds, start_buckets; | |
7936 | ||
6fd6ed71 | 7937 | start_ogds = reply->size; |
18ac06d3 | 7938 | ofpbuf_put_zeros(reply, sizeof *ogds); |
6fd6ed71 | 7939 | start_buckets = reply->size; |
18ac06d3 SH |
7940 | LIST_FOR_EACH (bucket, list_node, buckets) { |
7941 | ofputil_put_ofp15_bucket(bucket, bucket->bucket_id, | |
7942 | gds->type, reply, version); | |
7943 | } | |
7944 | ogds = ofpbuf_at_assert(reply, start_ogds, sizeof *ogds); | |
18ac06d3 SH |
7945 | ogds->type = gds->type; |
7946 | ogds->group_id = htonl(gds->group_id); | |
6fd6ed71 | 7947 | ogds->bucket_list_len = htons(reply->size - start_buckets); |
18ac06d3 | 7948 | |
53eb84a5 SH |
7949 | /* Add group properties */ |
7950 | if (gds->props.selection_method[0]) { | |
7951 | ofputil_put_group_prop_ntr_selection_method(version, &gds->props, | |
7952 | reply); | |
7953 | } | |
3986cae6 | 7954 | ogds->length = htons(reply->size - start_ogds); |
53eb84a5 | 7955 | |
18ac06d3 SH |
7956 | ofpmp_postappend(replies, start_ogds); |
7957 | } | |
7958 | ||
5be50252 SH |
7959 | /* Appends a group stats reply that contains the data in 'gds' to those already |
7960 | * present in the list of ofpbufs in 'replies'. 'replies' should have been | |
7961 | * initialized with ofpmp_init(). */ | |
7962 | void | |
7963 | ofputil_append_group_desc_reply(const struct ofputil_group_desc *gds, | |
1667bb34 | 7964 | const struct ovs_list *buckets, |
ca6ba700 | 7965 | struct ovs_list *replies) |
5be50252 SH |
7966 | { |
7967 | enum ofp_version version = ofpmp_version(replies); | |
7968 | ||
7969 | switch (version) | |
7970 | { | |
7971 | case OFP11_VERSION: | |
7972 | case OFP12_VERSION: | |
7973 | case OFP13_VERSION: | |
7974 | case OFP14_VERSION: | |
5be50252 SH |
7975 | ofputil_append_ofp11_group_desc_reply(gds, buckets, replies, version); |
7976 | break; | |
7977 | ||
18ac06d3 SH |
7978 | case OFP15_VERSION: |
7979 | ofputil_append_ofp15_group_desc_reply(gds, buckets, replies, version); | |
7980 | break; | |
7981 | ||
5be50252 SH |
7982 | case OFP10_VERSION: |
7983 | default: | |
7984 | OVS_NOT_REACHED(); | |
7985 | } | |
7986 | } | |
7987 | ||
7395c052 | 7988 | static enum ofperr |
655ed3ae | 7989 | ofputil_pull_ofp11_buckets(struct ofpbuf *msg, size_t buckets_length, |
ca6ba700 | 7990 | enum ofp_version version, struct ovs_list *buckets) |
7395c052 NZ |
7991 | { |
7992 | struct ofp11_bucket *ob; | |
18ac06d3 | 7993 | uint32_t bucket_id = 0; |
7395c052 NZ |
7994 | |
7995 | list_init(buckets); | |
7996 | while (buckets_length > 0) { | |
7997 | struct ofputil_bucket *bucket; | |
7998 | struct ofpbuf ofpacts; | |
7999 | enum ofperr error; | |
8000 | size_t ob_len; | |
8001 | ||
8002 | ob = (buckets_length >= sizeof *ob | |
8003 | ? ofpbuf_try_pull(msg, sizeof *ob) | |
8004 | : NULL); | |
8005 | if (!ob) { | |
34582733 | 8006 | VLOG_WARN_RL(&bad_ofmsg_rl, "buckets end with %"PRIuSIZE" leftover bytes", |
7395c052 | 8007 | buckets_length); |
e27e4ce9 | 8008 | return OFPERR_OFPGMFC_BAD_BUCKET; |
7395c052 NZ |
8009 | } |
8010 | ||
8011 | ob_len = ntohs(ob->len); | |
8012 | if (ob_len < sizeof *ob) { | |
8013 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length " | |
34582733 | 8014 | "%"PRIuSIZE" is not valid", ob_len); |
7395c052 NZ |
8015 | return OFPERR_OFPGMFC_BAD_BUCKET; |
8016 | } else if (ob_len > buckets_length) { | |
8017 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length " | |
34582733 | 8018 | "%"PRIuSIZE" exceeds remaining buckets data size %"PRIuSIZE, |
7395c052 NZ |
8019 | ob_len, buckets_length); |
8020 | return OFPERR_OFPGMFC_BAD_BUCKET; | |
8021 | } | |
8022 | buckets_length -= ob_len; | |
8023 | ||
8024 | ofpbuf_init(&ofpacts, 0); | |
e3f8f887 JR |
8025 | error = ofpacts_pull_openflow_actions(msg, ob_len - sizeof *ob, |
8026 | version, &ofpacts); | |
7395c052 NZ |
8027 | if (error) { |
8028 | ofpbuf_uninit(&ofpacts); | |
8029 | ofputil_bucket_list_destroy(buckets); | |
8030 | return error; | |
8031 | } | |
8032 | ||
8033 | bucket = xzalloc(sizeof *bucket); | |
8034 | bucket->weight = ntohs(ob->weight); | |
8035 | error = ofputil_port_from_ofp11(ob->watch_port, &bucket->watch_port); | |
8036 | if (error) { | |
8037 | ofpbuf_uninit(&ofpacts); | |
8038 | ofputil_bucket_list_destroy(buckets); | |
8039 | return OFPERR_OFPGMFC_BAD_WATCH; | |
8040 | } | |
8041 | bucket->watch_group = ntohl(ob->watch_group); | |
18ac06d3 SH |
8042 | bucket->bucket_id = bucket_id++; |
8043 | ||
7395c052 | 8044 | bucket->ofpacts = ofpbuf_steal_data(&ofpacts); |
6fd6ed71 | 8045 | bucket->ofpacts_len = ofpacts.size; |
7395c052 NZ |
8046 | list_push_back(buckets, &bucket->list_node); |
8047 | } | |
8048 | ||
8049 | return 0; | |
8050 | } | |
8051 | ||
18ac06d3 SH |
8052 | static enum ofperr |
8053 | ofputil_pull_ofp15_buckets(struct ofpbuf *msg, size_t buckets_length, | |
64e8c446 BP |
8054 | enum ofp_version version, uint8_t group_type, |
8055 | struct ovs_list *buckets) | |
18ac06d3 SH |
8056 | { |
8057 | struct ofp15_bucket *ob; | |
8058 | ||
8059 | list_init(buckets); | |
8060 | while (buckets_length > 0) { | |
8061 | struct ofputil_bucket *bucket = NULL; | |
8062 | struct ofpbuf ofpacts; | |
8063 | enum ofperr err = OFPERR_OFPGMFC_BAD_BUCKET; | |
8064 | struct ofpbuf properties; | |
8065 | size_t ob_len, actions_len, properties_len; | |
8066 | ovs_be32 watch_port = ofputil_port_to_ofp11(OFPP_ANY); | |
8067 | ovs_be32 watch_group = htonl(OFPG_ANY); | |
64e8c446 | 8068 | ovs_be16 weight = htons(group_type == OFPGT11_SELECT ? 1 : 0); |
18ac06d3 SH |
8069 | |
8070 | ofpbuf_init(&ofpacts, 0); | |
8071 | ||
8072 | ob = ofpbuf_try_pull(msg, sizeof *ob); | |
8073 | if (!ob) { | |
8074 | VLOG_WARN_RL(&bad_ofmsg_rl, "buckets end with %"PRIuSIZE | |
8075 | " leftover bytes", buckets_length); | |
8076 | goto err; | |
8077 | } | |
8078 | ||
8079 | ob_len = ntohs(ob->len); | |
79870963 | 8080 | actions_len = ntohs(ob->action_array_len); |
18ac06d3 SH |
8081 | |
8082 | if (ob_len < sizeof *ob) { | |
8083 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length " | |
8084 | "%"PRIuSIZE" is not valid", ob_len); | |
8085 | goto err; | |
8086 | } else if (ob_len > buckets_length) { | |
8087 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length " | |
8088 | "%"PRIuSIZE" exceeds remaining buckets data size %" | |
8089 | PRIuSIZE, ob_len, buckets_length); | |
8090 | goto err; | |
8091 | } else if (actions_len > ob_len - sizeof *ob) { | |
8092 | VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket actions " | |
8093 | "length %"PRIuSIZE" exceeds remaining bucket " | |
8094 | "data size %"PRIuSIZE, actions_len, | |
8095 | ob_len - sizeof *ob); | |
8096 | goto err; | |
8097 | } | |
8098 | buckets_length -= ob_len; | |
8099 | ||
8100 | err = ofpacts_pull_openflow_actions(msg, actions_len, version, | |
8101 | &ofpacts); | |
8102 | if (err) { | |
8103 | goto err; | |
8104 | } | |
8105 | ||
8106 | properties_len = ob_len - sizeof *ob - actions_len; | |
8107 | ofpbuf_use_const(&properties, ofpbuf_pull(msg, properties_len), | |
8108 | properties_len); | |
8109 | ||
6fd6ed71 | 8110 | while (properties.size > 0) { |
18ac06d3 | 8111 | struct ofpbuf payload; |
34a543e3 | 8112 | uint64_t type; |
18ac06d3 | 8113 | |
c5562271 | 8114 | err = ofpprop_pull(&properties, &payload, &type); |
18ac06d3 SH |
8115 | if (err) { |
8116 | goto err; | |
8117 | } | |
8118 | ||
8119 | switch (type) { | |
8120 | case OFPGBPT15_WEIGHT: | |
b611d3ac | 8121 | err = ofpprop_parse_be16(&payload, &weight); |
18ac06d3 SH |
8122 | break; |
8123 | ||
8124 | case OFPGBPT15_WATCH_PORT: | |
b611d3ac | 8125 | err = ofpprop_parse_be32(&payload, &watch_port); |
18ac06d3 SH |
8126 | break; |
8127 | ||
8128 | case OFPGBPT15_WATCH_GROUP: | |
b611d3ac | 8129 | err = ofpprop_parse_be32(&payload, &watch_group); |
18ac06d3 SH |
8130 | break; |
8131 | ||
8132 | default: | |
34a543e3 | 8133 | err = OFPPROP_UNKNOWN(false, "group bucket", type); |
18ac06d3 SH |
8134 | break; |
8135 | } | |
8136 | ||
8137 | if (err) { | |
8138 | goto err; | |
8139 | } | |
8140 | } | |
8141 | ||
8142 | bucket = xzalloc(sizeof *bucket); | |
8143 | ||
8144 | bucket->weight = ntohs(weight); | |
8145 | err = ofputil_port_from_ofp11(watch_port, &bucket->watch_port); | |
8146 | if (err) { | |
8147 | err = OFPERR_OFPGMFC_BAD_WATCH; | |
8148 | goto err; | |
8149 | } | |
8150 | bucket->watch_group = ntohl(watch_group); | |
8151 | bucket->bucket_id = ntohl(ob->bucket_id); | |
8152 | if (bucket->bucket_id > OFPG15_BUCKET_MAX) { | |
8153 | VLOG_WARN_RL(&bad_ofmsg_rl, "bucket id (%u) is out of range", | |
8154 | bucket->bucket_id); | |
8155 | err = OFPERR_OFPGMFC_BAD_BUCKET; | |
8156 | goto err; | |
8157 | } | |
8158 | ||
8159 | bucket->ofpacts = ofpbuf_steal_data(&ofpacts); | |
6fd6ed71 | 8160 | bucket->ofpacts_len = ofpacts.size; |
18ac06d3 SH |
8161 | list_push_back(buckets, &bucket->list_node); |
8162 | ||
8163 | continue; | |
8164 | ||
8165 | err: | |
8166 | free(bucket); | |
8167 | ofpbuf_uninit(&ofpacts); | |
8168 | ofputil_bucket_list_destroy(buckets); | |
8169 | return err; | |
8170 | } | |
8171 | ||
8172 | if (ofputil_bucket_check_duplicate_id(buckets)) { | |
8173 | VLOG_WARN_RL(&bad_ofmsg_rl, "Duplicate bucket id"); | |
8174 | ofputil_bucket_list_destroy(buckets); | |
8175 | return OFPERR_OFPGMFC_BAD_BUCKET; | |
8176 | } | |
8177 | ||
8178 | return 0; | |
8179 | } | |
8180 | ||
bc65c25a SH |
8181 | static void |
8182 | ofputil_init_group_properties(struct ofputil_group_props *gp) | |
8183 | { | |
8184 | memset(gp, 0, sizeof *gp); | |
8185 | } | |
8186 | ||
8187 | static enum ofperr | |
8188 | parse_group_prop_ntr_selection_method(struct ofpbuf *payload, | |
8189 | enum ofp11_group_type group_type, | |
8190 | enum ofp15_group_mod_command group_cmd, | |
8191 | struct ofputil_group_props *gp) | |
8192 | { | |
8193 | struct ntr_group_prop_selection_method *prop = payload->data; | |
8194 | size_t fields_len, method_len; | |
8195 | enum ofperr error; | |
8196 | ||
8197 | switch (group_type) { | |
8198 | case OFPGT11_SELECT: | |
8199 | break; | |
8200 | case OFPGT11_ALL: | |
8201 | case OFPGT11_INDIRECT: | |
8202 | case OFPGT11_FF: | |
c5562271 BP |
8203 | OFPPROP_LOG(&bad_ofmsg_rl, false, "ntr selection method property is " |
8204 | "only allowed for select groups"); | |
bc65c25a SH |
8205 | return OFPERR_OFPBPC_BAD_VALUE; |
8206 | default: | |
8207 | OVS_NOT_REACHED(); | |
8208 | } | |
8209 | ||
8210 | switch (group_cmd) { | |
8211 | case OFPGC15_ADD: | |
8212 | case OFPGC15_MODIFY: | |
8213 | break; | |
8214 | case OFPGC15_DELETE: | |
8215 | case OFPGC15_INSERT_BUCKET: | |
8216 | case OFPGC15_REMOVE_BUCKET: | |
c5562271 BP |
8217 | OFPPROP_LOG(&bad_ofmsg_rl, false, "ntr selection method property is " |
8218 | "only allowed for add and delete group modifications"); | |
bc65c25a SH |
8219 | return OFPERR_OFPBPC_BAD_VALUE; |
8220 | default: | |
8221 | OVS_NOT_REACHED(); | |
8222 | } | |
8223 | ||
8224 | if (payload->size < sizeof *prop) { | |
c5562271 BP |
8225 | OFPPROP_LOG(&bad_ofmsg_rl, false, "ntr selection method property " |
8226 | "length %u is not valid", payload->size); | |
bc65c25a SH |
8227 | return OFPERR_OFPBPC_BAD_LEN; |
8228 | } | |
8229 | ||
8230 | method_len = strnlen(prop->selection_method, NTR_MAX_SELECTION_METHOD_LEN); | |
8231 | ||
8232 | if (method_len == NTR_MAX_SELECTION_METHOD_LEN) { | |
c5562271 BP |
8233 | OFPPROP_LOG(&bad_ofmsg_rl, false, |
8234 | "ntr selection method is not null terminated"); | |
bc65c25a SH |
8235 | return OFPERR_OFPBPC_BAD_VALUE; |
8236 | } | |
8237 | ||
0c4b9393 | 8238 | if (strcmp("hash", prop->selection_method)) { |
c5562271 BP |
8239 | OFPPROP_LOG(&bad_ofmsg_rl, false, |
8240 | "ntr selection method '%s' is not supported", | |
8241 | prop->selection_method); | |
0c4b9393 SH |
8242 | return OFPERR_OFPBPC_BAD_VALUE; |
8243 | } | |
bc65c25a SH |
8244 | |
8245 | strcpy(gp->selection_method, prop->selection_method); | |
8246 | gp->selection_method_param = ntohll(prop->selection_method_param); | |
8247 | ||
8248 | if (!method_len && gp->selection_method_param) { | |
c5562271 BP |
8249 | OFPPROP_LOG(&bad_ofmsg_rl, false, "ntr selection method parameter is " |
8250 | "non-zero but selection method is empty"); | |
bc65c25a SH |
8251 | return OFPERR_OFPBPC_BAD_VALUE; |
8252 | } | |
8253 | ||
8254 | ofpbuf_pull(payload, sizeof *prop); | |
8255 | ||
8256 | fields_len = ntohs(prop->length) - sizeof *prop; | |
8257 | if (!method_len && fields_len) { | |
c5562271 BP |
8258 | OFPPROP_LOG(&bad_ofmsg_rl, false, "ntr selection method parameter is " |
8259 | "zero but fields are provided"); | |
bc65c25a SH |
8260 | return OFPERR_OFPBPC_BAD_VALUE; |
8261 | } | |
8262 | ||
8263 | error = oxm_pull_field_array(payload->data, fields_len, | |
8264 | &gp->fields); | |
8265 | if (error) { | |
c5562271 BP |
8266 | OFPPROP_LOG(&bad_ofmsg_rl, false, |
8267 | "ntr selection method fields are invalid"); | |
bc65c25a SH |
8268 | return error; |
8269 | } | |
8270 | ||
8271 | return 0; | |
8272 | } | |
8273 | ||
bc65c25a SH |
8274 | static enum ofperr |
8275 | parse_ofp15_group_properties(struct ofpbuf *msg, | |
8276 | enum ofp11_group_type group_type, | |
8277 | enum ofp15_group_mod_command group_cmd, | |
8278 | struct ofputil_group_props *gp, | |
8279 | size_t properties_len) | |
8280 | { | |
8281 | struct ofpbuf properties; | |
8282 | ||
8283 | ofpbuf_use_const(&properties, ofpbuf_pull(msg, properties_len), | |
8284 | properties_len); | |
8285 | ||
8286 | while (properties.size > 0) { | |
8287 | struct ofpbuf payload; | |
8288 | enum ofperr error; | |
34a543e3 | 8289 | uint64_t type; |
bc65c25a | 8290 | |
c5562271 | 8291 | error = ofpprop_pull(&properties, &payload, &type); |
bc65c25a SH |
8292 | if (error) { |
8293 | return error; | |
8294 | } | |
8295 | ||
8296 | switch (type) { | |
34a543e3 BP |
8297 | case OFPPROP_EXP(NTR_VENDOR_ID, NTRT_SELECTION_METHOD): |
8298 | case OFPPROP_EXP(NTR_COMPAT_VENDOR_ID, NTRT_SELECTION_METHOD): | |
8299 | error = parse_group_prop_ntr_selection_method(&payload, group_type, | |
8300 | group_cmd, gp); | |
bc65c25a SH |
8301 | break; |
8302 | ||
8303 | default: | |
34a543e3 | 8304 | error = OFPPROP_UNKNOWN(false, "group", type); |
bc65c25a SH |
8305 | break; |
8306 | } | |
8307 | ||
8308 | if (error) { | |
8309 | return error; | |
8310 | } | |
8311 | } | |
8312 | ||
8313 | return 0; | |
8314 | } | |
8315 | ||
975910f2 SH |
8316 | static int |
8317 | ofputil_decode_ofp11_group_desc_reply(struct ofputil_group_desc *gd, | |
8318 | struct ofpbuf *msg, | |
8319 | enum ofp_version version) | |
7395c052 NZ |
8320 | { |
8321 | struct ofp11_group_desc_stats *ogds; | |
8322 | size_t length; | |
8323 | ||
6fd6ed71 | 8324 | if (!msg->header) { |
7395c052 NZ |
8325 | ofpraw_pull_assert(msg); |
8326 | } | |
8327 | ||
6fd6ed71 | 8328 | if (!msg->size) { |
7395c052 NZ |
8329 | return EOF; |
8330 | } | |
8331 | ||
8332 | ogds = ofpbuf_try_pull(msg, sizeof *ogds); | |
8333 | if (!ogds) { | |
437d0d22 | 8334 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply has %"PRIu32" " |
6fd6ed71 | 8335 | "leftover bytes at end", msg->size); |
7395c052 NZ |
8336 | return OFPERR_OFPBRC_BAD_LEN; |
8337 | } | |
8338 | gd->type = ogds->type; | |
8339 | gd->group_id = ntohl(ogds->group_id); | |
8340 | ||
8341 | length = ntohs(ogds->length); | |
6fd6ed71 | 8342 | if (length < sizeof *ogds || length - sizeof *ogds > msg->size) { |
7395c052 | 8343 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply claims invalid " |
34582733 | 8344 | "length %"PRIuSIZE, length); |
7395c052 NZ |
8345 | return OFPERR_OFPBRC_BAD_LEN; |
8346 | } | |
8347 | ||
655ed3ae SH |
8348 | return ofputil_pull_ofp11_buckets(msg, length - sizeof *ogds, version, |
8349 | &gd->buckets); | |
7395c052 NZ |
8350 | } |
8351 | ||
18ac06d3 SH |
8352 | static int |
8353 | ofputil_decode_ofp15_group_desc_reply(struct ofputil_group_desc *gd, | |
8354 | struct ofpbuf *msg, | |
8355 | enum ofp_version version) | |
8356 | { | |
8357 | struct ofp15_group_desc_stats *ogds; | |
8358 | uint16_t length, bucket_list_len; | |
bc65c25a | 8359 | int error; |
18ac06d3 | 8360 | |
6fd6ed71 | 8361 | if (!msg->header) { |
18ac06d3 SH |
8362 | ofpraw_pull_assert(msg); |
8363 | } | |
8364 | ||
6fd6ed71 | 8365 | if (!msg->size) { |
18ac06d3 SH |
8366 | return EOF; |
8367 | } | |
8368 | ||
8369 | ogds = ofpbuf_try_pull(msg, sizeof *ogds); | |
8370 | if (!ogds) { | |
8371 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply has %"PRIu32" " | |
6fd6ed71 | 8372 | "leftover bytes at end", msg->size); |
18ac06d3 SH |
8373 | return OFPERR_OFPBRC_BAD_LEN; |
8374 | } | |
8375 | gd->type = ogds->type; | |
8376 | gd->group_id = ntohl(ogds->group_id); | |
8377 | ||
8378 | length = ntohs(ogds->length); | |
6fd6ed71 | 8379 | if (length < sizeof *ogds || length - sizeof *ogds > msg->size) { |
18ac06d3 SH |
8380 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply claims invalid " |
8381 | "length %u", length); | |
8382 | return OFPERR_OFPBRC_BAD_LEN; | |
8383 | } | |
8384 | ||
8385 | bucket_list_len = ntohs(ogds->bucket_list_len); | |
8386 | if (length < bucket_list_len + sizeof *ogds) { | |
8387 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply claims invalid " | |
8388 | "bucket list length %u", bucket_list_len); | |
8389 | return OFPERR_OFPBRC_BAD_LEN; | |
8390 | } | |
64e8c446 | 8391 | error = ofputil_pull_ofp15_buckets(msg, bucket_list_len, version, gd->type, |
bc65c25a SH |
8392 | &gd->buckets); |
8393 | if (error) { | |
8394 | return error; | |
8395 | } | |
18ac06d3 | 8396 | |
bc65c25a SH |
8397 | /* By definition group desc messages don't have a group mod command. |
8398 | * However, parse_group_prop_ntr_selection_method() checks to make sure | |
8399 | * that the command is OFPGC15_ADD or OFPGC15_DELETE to guard | |
8400 | * against group mod messages with other commands supplying | |
8401 | * a NTR selection method group experimenter property. | |
8402 | * Such properties are valid for group desc replies so | |
8403 | * claim that the group mod command is OFPGC15_ADD to | |
8404 | * satisfy the check in parse_group_prop_ntr_selection_method() */ | |
8405 | return parse_ofp15_group_properties(msg, gd->type, OFPGC15_ADD, &gd->props, | |
3986cae6 | 8406 | length - sizeof *ogds - bucket_list_len); |
18ac06d3 SH |
8407 | } |
8408 | ||
975910f2 SH |
8409 | /* Converts a group description reply in 'msg' into an abstract |
8410 | * ofputil_group_desc in 'gd'. | |
8411 | * | |
8412 | * Multiple group description replies can be packed into a single OpenFlow | |
8413 | * message. Calling this function multiple times for a single 'msg' iterates | |
8414 | * through the replies. The caller must initially leave 'msg''s layer pointers | |
8415 | * null and not modify them between calls. | |
8416 | * | |
8417 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
8418 | * otherwise a positive errno value. */ | |
8419 | int | |
8420 | ofputil_decode_group_desc_reply(struct ofputil_group_desc *gd, | |
8421 | struct ofpbuf *msg, enum ofp_version version) | |
8422 | { | |
bc65c25a SH |
8423 | ofputil_init_group_properties(&gd->props); |
8424 | ||
975910f2 SH |
8425 | switch (version) |
8426 | { | |
8427 | case OFP11_VERSION: | |
8428 | case OFP12_VERSION: | |
8429 | case OFP13_VERSION: | |
8430 | case OFP14_VERSION: | |
975910f2 SH |
8431 | return ofputil_decode_ofp11_group_desc_reply(gd, msg, version); |
8432 | ||
18ac06d3 SH |
8433 | case OFP15_VERSION: |
8434 | return ofputil_decode_ofp15_group_desc_reply(gd, msg, version); | |
8435 | ||
975910f2 SH |
8436 | case OFP10_VERSION: |
8437 | default: | |
8438 | OVS_NOT_REACHED(); | |
8439 | } | |
8440 | } | |
8441 | ||
bc65c25a SH |
8442 | void |
8443 | ofputil_uninit_group_mod(struct ofputil_group_mod *gm) | |
8444 | { | |
8445 | ofputil_bucket_list_destroy(&gm->buckets); | |
8446 | } | |
8447 | ||
4498bea5 SH |
8448 | static struct ofpbuf * |
8449 | ofputil_encode_ofp11_group_mod(enum ofp_version ofp_version, | |
8450 | const struct ofputil_group_mod *gm) | |
7395c052 NZ |
8451 | { |
8452 | struct ofpbuf *b; | |
8453 | struct ofp11_group_mod *ogm; | |
8454 | size_t start_ogm; | |
7395c052 | 8455 | struct ofputil_bucket *bucket; |
7395c052 | 8456 | |
4498bea5 | 8457 | b = ofpraw_alloc(OFPRAW_OFPT11_GROUP_MOD, ofp_version, 0); |
6fd6ed71 | 8458 | start_ogm = b->size; |
4498bea5 SH |
8459 | ofpbuf_put_zeros(b, sizeof *ogm); |
8460 | ||
8461 | LIST_FOR_EACH (bucket, list_node, &gm->buckets) { | |
8462 | ofputil_put_ofp11_bucket(bucket, b, ofp_version); | |
8463 | } | |
8464 | ogm = ofpbuf_at_assert(b, start_ogm, sizeof *ogm); | |
8465 | ogm->command = htons(gm->command); | |
8466 | ogm->type = gm->type; | |
8467 | ogm->group_id = htonl(gm->group_id); | |
8468 | ||
8469 | return b; | |
8470 | } | |
8471 | ||
18ac06d3 SH |
8472 | static struct ofpbuf * |
8473 | ofputil_encode_ofp15_group_mod(enum ofp_version ofp_version, | |
8474 | const struct ofputil_group_mod *gm) | |
8475 | { | |
8476 | struct ofpbuf *b; | |
8477 | struct ofp15_group_mod *ogm; | |
8478 | size_t start_ogm; | |
8479 | struct ofputil_bucket *bucket; | |
8480 | struct id_pool *bucket_ids = NULL; | |
8481 | ||
8482 | b = ofpraw_alloc(OFPRAW_OFPT15_GROUP_MOD, ofp_version, 0); | |
6fd6ed71 | 8483 | start_ogm = b->size; |
18ac06d3 SH |
8484 | ofpbuf_put_zeros(b, sizeof *ogm); |
8485 | ||
8486 | LIST_FOR_EACH (bucket, list_node, &gm->buckets) { | |
8487 | uint32_t bucket_id; | |
8488 | ||
8489 | /* Generate a bucket id if none was supplied */ | |
8490 | if (bucket->bucket_id > OFPG15_BUCKET_MAX) { | |
8491 | if (!bucket_ids) { | |
8492 | const struct ofputil_bucket *bkt; | |
8493 | ||
8494 | bucket_ids = id_pool_create(0, OFPG15_BUCKET_MAX + 1); | |
8495 | ||
8496 | /* Mark all bucket_ids that are present in gm | |
8497 | * as used in the pool. */ | |
8498 | LIST_FOR_EACH_REVERSE (bkt, list_node, &gm->buckets) { | |
8499 | if (bkt == bucket) { | |
8500 | break; | |
8501 | } | |
8502 | if (bkt->bucket_id <= OFPG15_BUCKET_MAX) { | |
8503 | id_pool_add(bucket_ids, bkt->bucket_id); | |
8504 | } | |
8505 | } | |
8506 | } | |
8507 | ||
8508 | if (!id_pool_alloc_id(bucket_ids, &bucket_id)) { | |
8509 | OVS_NOT_REACHED(); | |
8510 | } | |
8511 | } else { | |
8512 | bucket_id = bucket->bucket_id; | |
8513 | } | |
8514 | ||
8515 | ofputil_put_ofp15_bucket(bucket, bucket_id, gm->type, b, ofp_version); | |
8516 | } | |
8517 | ogm = ofpbuf_at_assert(b, start_ogm, sizeof *ogm); | |
8518 | ogm->command = htons(gm->command); | |
8519 | ogm->type = gm->type; | |
8520 | ogm->group_id = htonl(gm->group_id); | |
8521 | ogm->command_bucket_id = htonl(gm->command_bucket_id); | |
6fd6ed71 | 8522 | ogm->bucket_array_len = htons(b->size - start_ogm - sizeof *ogm); |
18ac06d3 | 8523 | |
53eb84a5 SH |
8524 | /* Add group properties */ |
8525 | if (gm->props.selection_method[0]) { | |
8526 | ofputil_put_group_prop_ntr_selection_method(ofp_version, &gm->props, b); | |
8527 | } | |
8528 | ||
18ac06d3 SH |
8529 | id_pool_destroy(bucket_ids); |
8530 | return b; | |
8531 | } | |
8532 | ||
d4b1d0ca | 8533 | static void |
9dd30b05 BP |
8534 | bad_group_cmd(enum ofp15_group_mod_command cmd) |
8535 | { | |
d4b1d0ca SH |
8536 | const char *opt_version; |
8537 | const char *version; | |
8538 | const char *cmd_str; | |
8539 | ||
8540 | switch (cmd) { | |
8541 | case OFPGC15_ADD: | |
8542 | case OFPGC15_MODIFY: | |
8543 | case OFPGC15_DELETE: | |
8544 | version = "1.1"; | |
8545 | opt_version = "11"; | |
8546 | break; | |
8547 | ||
8548 | case OFPGC15_INSERT_BUCKET: | |
8549 | case OFPGC15_REMOVE_BUCKET: | |
8550 | version = "1.5"; | |
8551 | opt_version = "15"; | |
9dd30b05 | 8552 | break; |
d4b1d0ca SH |
8553 | |
8554 | default: | |
8555 | OVS_NOT_REACHED(); | |
8556 | } | |
8557 | ||
8558 | switch (cmd) { | |
8559 | case OFPGC15_ADD: | |
8560 | cmd_str = "add-group"; | |
8561 | break; | |
8562 | ||
8563 | case OFPGC15_MODIFY: | |
8564 | cmd_str = "mod-group"; | |
8565 | break; | |
8566 | ||
8567 | case OFPGC15_DELETE: | |
8568 | cmd_str = "del-group"; | |
8569 | break; | |
8570 | ||
8571 | case OFPGC15_INSERT_BUCKET: | |
8572 | cmd_str = "insert-bucket"; | |
8573 | break; | |
8574 | ||
8575 | case OFPGC15_REMOVE_BUCKET: | |
9dd30b05 | 8576 | cmd_str = "remove-bucket"; |
d4b1d0ca SH |
8577 | break; |
8578 | ||
8579 | default: | |
8580 | OVS_NOT_REACHED(); | |
8581 | } | |
8582 | ||
8583 | ovs_fatal(0, "%s needs OpenFlow %s or later (\'-O OpenFlow%s\')", | |
8584 | cmd_str, version, opt_version); | |
8585 | ||
8586 | } | |
8587 | ||
4498bea5 SH |
8588 | /* Converts abstract group mod 'gm' into a message for OpenFlow version |
8589 | * 'ofp_version' and returns the message. */ | |
8590 | struct ofpbuf * | |
8591 | ofputil_encode_group_mod(enum ofp_version ofp_version, | |
8592 | const struct ofputil_group_mod *gm) | |
8593 | { | |
d4b1d0ca | 8594 | |
7395c052 | 8595 | switch (ofp_version) { |
d4b1d0ca SH |
8596 | case OFP10_VERSION: |
8597 | bad_group_cmd(gm->command); | |
7395c052 NZ |
8598 | |
8599 | case OFP11_VERSION: | |
8600 | case OFP12_VERSION: | |
c37c0382 AC |
8601 | case OFP13_VERSION: |
8602 | case OFP14_VERSION: | |
d4b1d0ca SH |
8603 | if (gm->command > OFPGC11_DELETE) { |
8604 | bad_group_cmd(gm->command); | |
8605 | } | |
4498bea5 | 8606 | return ofputil_encode_ofp11_group_mod(ofp_version, gm); |
7395c052 | 8607 | |
18ac06d3 SH |
8608 | case OFP15_VERSION: |
8609 | return ofputil_encode_ofp15_group_mod(ofp_version, gm); | |
8610 | ||
7395c052 | 8611 | default: |
428b2edd | 8612 | OVS_NOT_REACHED(); |
7395c052 | 8613 | } |
7395c052 NZ |
8614 | } |
8615 | ||
aead63f2 SH |
8616 | static enum ofperr |
8617 | ofputil_pull_ofp11_group_mod(struct ofpbuf *msg, enum ofp_version ofp_version, | |
8618 | struct ofputil_group_mod *gm) | |
8619 | { | |
8620 | const struct ofp11_group_mod *ogm; | |
08ba0810 | 8621 | enum ofperr error; |
aead63f2 SH |
8622 | |
8623 | ogm = ofpbuf_pull(msg, sizeof *ogm); | |
8624 | gm->command = ntohs(ogm->command); | |
8625 | gm->type = ogm->type; | |
8626 | gm->group_id = ntohl(ogm->group_id); | |
18ac06d3 | 8627 | gm->command_bucket_id = OFPG15_BUCKET_ALL; |
aead63f2 | 8628 | |
6fd6ed71 | 8629 | error = ofputil_pull_ofp11_buckets(msg, msg->size, ofp_version, |
08ba0810 BP |
8630 | &gm->buckets); |
8631 | ||
8632 | /* OF1.3.5+ prescribes an error when an OFPGC_DELETE includes buckets. */ | |
8633 | if (!error | |
8634 | && ofp_version >= OFP13_VERSION | |
8635 | && gm->command == OFPGC11_DELETE | |
8636 | && !list_is_empty(&gm->buckets)) { | |
8637 | error = OFPERR_OFPGMFC_INVALID_GROUP; | |
8638 | } | |
8639 | ||
8640 | return error; | |
aead63f2 SH |
8641 | } |
8642 | ||
18ac06d3 SH |
8643 | static enum ofperr |
8644 | ofputil_pull_ofp15_group_mod(struct ofpbuf *msg, enum ofp_version ofp_version, | |
8645 | struct ofputil_group_mod *gm) | |
8646 | { | |
8647 | const struct ofp15_group_mod *ogm; | |
8648 | uint16_t bucket_list_len; | |
8649 | enum ofperr error = OFPERR_OFPGMFC_BAD_BUCKET; | |
8650 | ||
8651 | ogm = ofpbuf_pull(msg, sizeof *ogm); | |
8652 | gm->command = ntohs(ogm->command); | |
8653 | gm->type = ogm->type; | |
8654 | gm->group_id = ntohl(ogm->group_id); | |
8655 | ||
8656 | gm->command_bucket_id = ntohl(ogm->command_bucket_id); | |
8657 | switch (gm->command) { | |
8658 | case OFPGC15_REMOVE_BUCKET: | |
8659 | if (gm->command_bucket_id == OFPG15_BUCKET_ALL) { | |
8660 | error = 0; | |
8661 | } | |
8662 | /* Fall through */ | |
8663 | case OFPGC15_INSERT_BUCKET: | |
8664 | if (gm->command_bucket_id <= OFPG15_BUCKET_MAX || | |
8665 | gm->command_bucket_id == OFPG15_BUCKET_FIRST | |
8666 | || gm->command_bucket_id == OFPG15_BUCKET_LAST) { | |
8667 | error = 0; | |
8668 | } | |
8669 | break; | |
8670 | ||
8671 | case OFPGC11_ADD: | |
8672 | case OFPGC11_MODIFY: | |
8673 | case OFPGC11_DELETE: | |
8674 | default: | |
8675 | if (gm->command_bucket_id == OFPG15_BUCKET_ALL) { | |
8676 | error = 0; | |
8677 | } | |
8678 | break; | |
8679 | } | |
8680 | if (error) { | |
8681 | VLOG_WARN_RL(&bad_ofmsg_rl, | |
8682 | "group command bucket id (%u) is out of range", | |
8683 | gm->command_bucket_id); | |
8684 | return OFPERR_OFPGMFC_BAD_BUCKET; | |
8685 | } | |
8686 | ||
79870963 | 8687 | bucket_list_len = ntohs(ogm->bucket_array_len); |
bc65c25a | 8688 | error = ofputil_pull_ofp15_buckets(msg, bucket_list_len, ofp_version, |
64e8c446 | 8689 | gm->type, &gm->buckets); |
bc65c25a SH |
8690 | if (error) { |
8691 | return error; | |
18ac06d3 SH |
8692 | } |
8693 | ||
bc65c25a SH |
8694 | return parse_ofp15_group_properties(msg, gm->type, gm->command, &gm->props, |
8695 | msg->size); | |
18ac06d3 SH |
8696 | } |
8697 | ||
7395c052 NZ |
8698 | /* Converts OpenFlow group mod message 'oh' into an abstract group mod in |
8699 | * 'gm'. Returns 0 if successful, otherwise an OpenFlow error code. */ | |
8700 | enum ofperr | |
8701 | ofputil_decode_group_mod(const struct ofp_header *oh, | |
8702 | struct ofputil_group_mod *gm) | |
8703 | { | |
aead63f2 | 8704 | enum ofp_version ofp_version = oh->version; |
7395c052 | 8705 | struct ofpbuf msg; |
e57681e5 SH |
8706 | struct ofputil_bucket *bucket; |
8707 | enum ofperr err; | |
7395c052 NZ |
8708 | |
8709 | ofpbuf_use_const(&msg, oh, ntohs(oh->length)); | |
8710 | ofpraw_pull_assert(&msg); | |
8711 | ||
bc65c25a SH |
8712 | ofputil_init_group_properties(&gm->props); |
8713 | ||
aead63f2 SH |
8714 | switch (ofp_version) |
8715 | { | |
8716 | case OFP11_VERSION: | |
8717 | case OFP12_VERSION: | |
8718 | case OFP13_VERSION: | |
8719 | case OFP14_VERSION: | |
aead63f2 SH |
8720 | err = ofputil_pull_ofp11_group_mod(&msg, ofp_version, gm); |
8721 | break; | |
8722 | ||
18ac06d3 SH |
8723 | case OFP15_VERSION: |
8724 | err = ofputil_pull_ofp15_group_mod(&msg, ofp_version, gm); | |
8725 | break; | |
8726 | ||
aead63f2 SH |
8727 | case OFP10_VERSION: |
8728 | default: | |
8729 | OVS_NOT_REACHED(); | |
8730 | } | |
7395c052 | 8731 | |
e57681e5 SH |
8732 | if (err) { |
8733 | return err; | |
8734 | } | |
8735 | ||
e1799eb7 SH |
8736 | switch (gm->type) { |
8737 | case OFPGT11_INDIRECT: | |
8738 | if (!list_is_singleton(&gm->buckets)) { | |
290eada7 | 8739 | return OFPERR_OFPGMFC_INVALID_GROUP; |
e1799eb7 SH |
8740 | } |
8741 | break; | |
8742 | case OFPGT11_ALL: | |
8743 | case OFPGT11_SELECT: | |
8744 | case OFPGT11_FF: | |
8745 | break; | |
8746 | default: | |
09d4b951 | 8747 | return OFPERR_OFPGMFC_BAD_TYPE; |
65075b99 SH |
8748 | } |
8749 | ||
8750 | switch (gm->command) { | |
8751 | case OFPGC11_ADD: | |
8752 | case OFPGC11_MODIFY: | |
8753 | case OFPGC11_DELETE: | |
8754 | case OFPGC15_INSERT_BUCKET: | |
8755 | break; | |
8756 | case OFPGC15_REMOVE_BUCKET: | |
8757 | if (!list_is_empty(&gm->buckets)) { | |
8758 | return OFPERR_OFPGMFC_BAD_BUCKET; | |
8759 | } | |
8760 | break; | |
8761 | default: | |
09d4b951 | 8762 | return OFPERR_OFPGMFC_BAD_COMMAND; |
e1799eb7 SH |
8763 | } |
8764 | ||
e57681e5 | 8765 | LIST_FOR_EACH (bucket, list_node, &gm->buckets) { |
64e8c446 BP |
8766 | if (bucket->weight && gm->type != OFPGT11_SELECT) { |
8767 | return OFPERR_OFPGMFC_INVALID_GROUP; | |
8768 | } | |
8769 | ||
e57681e5 SH |
8770 | switch (gm->type) { |
8771 | case OFPGT11_ALL: | |
8772 | case OFPGT11_INDIRECT: | |
8773 | if (ofputil_bucket_has_liveness(bucket)) { | |
8774 | return OFPERR_OFPGMFC_WATCH_UNSUPPORTED; | |
8775 | } | |
8776 | break; | |
8777 | case OFPGT11_SELECT: | |
8778 | break; | |
8779 | case OFPGT11_FF: | |
8780 | if (!ofputil_bucket_has_liveness(bucket)) { | |
8781 | return OFPERR_OFPGMFC_INVALID_GROUP; | |
8782 | } | |
8783 | break; | |
8784 | default: | |
896313f3 FL |
8785 | /* Returning BAD TYPE to be consistent |
8786 | * though gm->type has been checked already. */ | |
8787 | return OFPERR_OFPGMFC_BAD_TYPE; | |
e57681e5 SH |
8788 | } |
8789 | } | |
8790 | ||
8791 | return 0; | |
7395c052 NZ |
8792 | } |
8793 | ||
64626975 SH |
8794 | /* Parse a queue status request message into 'oqsr'. |
8795 | * Returns 0 if successful, otherwise an OFPERR_* number. */ | |
8796 | enum ofperr | |
8797 | ofputil_decode_queue_stats_request(const struct ofp_header *request, | |
8798 | struct ofputil_queue_stats_request *oqsr) | |
8799 | { | |
8800 | switch ((enum ofp_version)request->version) { | |
42dccab5 | 8801 | case OFP15_VERSION: |
c37c0382 | 8802 | case OFP14_VERSION: |
2e1ae200 | 8803 | case OFP13_VERSION: |
64626975 SH |
8804 | case OFP12_VERSION: |
8805 | case OFP11_VERSION: { | |
8806 | const struct ofp11_queue_stats_request *qsr11 = ofpmsg_body(request); | |
8807 | oqsr->queue_id = ntohl(qsr11->queue_id); | |
8808 | return ofputil_port_from_ofp11(qsr11->port_no, &oqsr->port_no); | |
8809 | } | |
8810 | ||
8811 | case OFP10_VERSION: { | |
7f05e7ab JR |
8812 | const struct ofp10_queue_stats_request *qsr10 = ofpmsg_body(request); |
8813 | oqsr->queue_id = ntohl(qsr10->queue_id); | |
4e022ec0 | 8814 | oqsr->port_no = u16_to_ofp(ntohs(qsr10->port_no)); |
7f05e7ab JR |
8815 | /* OF 1.0 uses OFPP_ALL for OFPP_ANY */ |
8816 | if (oqsr->port_no == OFPP_ALL) { | |
8817 | oqsr->port_no = OFPP_ANY; | |
8818 | } | |
64626975 SH |
8819 | return 0; |
8820 | } | |
8821 | ||
8822 | default: | |
428b2edd | 8823 | OVS_NOT_REACHED(); |
64626975 SH |
8824 | } |
8825 | } | |
8826 | ||
0746a84f BP |
8827 | /* Encode a queue stats request for 'oqsr', the encoded message |
8828 | * will be for OpenFlow version 'ofp_version'. Returns message | |
8829 | * as a struct ofpbuf. Returns encoded message on success, NULL on error. */ | |
64626975 SH |
8830 | struct ofpbuf * |
8831 | ofputil_encode_queue_stats_request(enum ofp_version ofp_version, | |
8832 | const struct ofputil_queue_stats_request *oqsr) | |
8833 | { | |
8834 | struct ofpbuf *request; | |
8835 | ||
8836 | switch (ofp_version) { | |
8837 | case OFP11_VERSION: | |
2e1ae200 | 8838 | case OFP12_VERSION: |
c37c0382 | 8839 | case OFP13_VERSION: |
42dccab5 BP |
8840 | case OFP14_VERSION: |
8841 | case OFP15_VERSION: { | |
64626975 SH |
8842 | struct ofp11_queue_stats_request *req; |
8843 | request = ofpraw_alloc(OFPRAW_OFPST11_QUEUE_REQUEST, ofp_version, 0); | |
8844 | req = ofpbuf_put_zeros(request, sizeof *req); | |
8845 | req->port_no = ofputil_port_to_ofp11(oqsr->port_no); | |
8846 | req->queue_id = htonl(oqsr->queue_id); | |
8847 | break; | |
8848 | } | |
8849 | case OFP10_VERSION: { | |
8850 | struct ofp10_queue_stats_request *req; | |
8851 | request = ofpraw_alloc(OFPRAW_OFPST10_QUEUE_REQUEST, ofp_version, 0); | |
8852 | req = ofpbuf_put_zeros(request, sizeof *req); | |
7f05e7ab | 8853 | /* OpenFlow 1.0 needs OFPP_ALL instead of OFPP_ANY */ |
4e022ec0 AW |
8854 | req->port_no = htons(ofp_to_u16(oqsr->port_no == OFPP_ANY |
8855 | ? OFPP_ALL : oqsr->port_no)); | |
64626975 SH |
8856 | req->queue_id = htonl(oqsr->queue_id); |
8857 | break; | |
8858 | } | |
8859 | default: | |
428b2edd | 8860 | OVS_NOT_REACHED(); |
64626975 SH |
8861 | } |
8862 | ||
8863 | return request; | |
8864 | } | |
8865 | ||
8866 | /* Returns the number of queue stats elements in OFPTYPE_QUEUE_STATS_REPLY | |
8867 | * message 'oh'. */ | |
8868 | size_t | |
8869 | ofputil_count_queue_stats(const struct ofp_header *oh) | |
8870 | { | |
1bb2cdbe | 8871 | struct ofputil_queue_stats qs; |
64626975 | 8872 | struct ofpbuf b; |
1bb2cdbe | 8873 | size_t n = 0; |
64626975 SH |
8874 | |
8875 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
8876 | ofpraw_pull_assert(&b); | |
1bb2cdbe BP |
8877 | while (!ofputil_decode_queue_stats(&qs, &b)) { |
8878 | n++; | |
8879 | } | |
8880 | return n; | |
64626975 SH |
8881 | } |
8882 | ||
8883 | static enum ofperr | |
8884 | ofputil_queue_stats_from_ofp10(struct ofputil_queue_stats *oqs, | |
8885 | const struct ofp10_queue_stats *qs10) | |
8886 | { | |
4e022ec0 | 8887 | oqs->port_no = u16_to_ofp(ntohs(qs10->port_no)); |
64626975 | 8888 | oqs->queue_id = ntohl(qs10->queue_id); |
6dc34a0d BP |
8889 | oqs->tx_bytes = ntohll(get_32aligned_be64(&qs10->tx_bytes)); |
8890 | oqs->tx_packets = ntohll(get_32aligned_be64(&qs10->tx_packets)); | |
8891 | oqs->tx_errors = ntohll(get_32aligned_be64(&qs10->tx_errors)); | |
8892 | oqs->duration_sec = oqs->duration_nsec = UINT32_MAX; | |
64626975 SH |
8893 | |
8894 | return 0; | |
8895 | } | |
8896 | ||
8897 | static enum ofperr | |
8898 | ofputil_queue_stats_from_ofp11(struct ofputil_queue_stats *oqs, | |
8899 | const struct ofp11_queue_stats *qs11) | |
8900 | { | |
8901 | enum ofperr error; | |
8902 | ||
8903 | error = ofputil_port_from_ofp11(qs11->port_no, &oqs->port_no); | |
8904 | if (error) { | |
8905 | return error; | |
8906 | } | |
8907 | ||
8908 | oqs->queue_id = ntohl(qs11->queue_id); | |
6dc34a0d BP |
8909 | oqs->tx_bytes = ntohll(qs11->tx_bytes); |
8910 | oqs->tx_packets = ntohll(qs11->tx_packets); | |
8911 | oqs->tx_errors = ntohll(qs11->tx_errors); | |
8912 | oqs->duration_sec = oqs->duration_nsec = UINT32_MAX; | |
64626975 SH |
8913 | |
8914 | return 0; | |
8915 | } | |
8916 | ||
2e1ae200 JR |
8917 | static enum ofperr |
8918 | ofputil_queue_stats_from_ofp13(struct ofputil_queue_stats *oqs, | |
8919 | const struct ofp13_queue_stats *qs13) | |
8920 | { | |
6dc34a0d | 8921 | enum ofperr error = ofputil_queue_stats_from_ofp11(oqs, &qs13->qs); |
2e1ae200 | 8922 | if (!error) { |
6dc34a0d BP |
8923 | oqs->duration_sec = ntohl(qs13->duration_sec); |
8924 | oqs->duration_nsec = ntohl(qs13->duration_nsec); | |
2e1ae200 JR |
8925 | } |
8926 | ||
8927 | return error; | |
8928 | } | |
8929 | ||
1bb2cdbe BP |
8930 | static enum ofperr |
8931 | ofputil_pull_ofp14_queue_stats(struct ofputil_queue_stats *oqs, | |
8932 | struct ofpbuf *msg) | |
8933 | { | |
8934 | const struct ofp14_queue_stats *qs14; | |
8935 | size_t len; | |
8936 | ||
8937 | qs14 = ofpbuf_try_pull(msg, sizeof *qs14); | |
8938 | if (!qs14) { | |
8939 | return OFPERR_OFPBRC_BAD_LEN; | |
8940 | } | |
8941 | ||
8942 | len = ntohs(qs14->length); | |
6fd6ed71 | 8943 | if (len < sizeof *qs14 || len - sizeof *qs14 > msg->size) { |
1bb2cdbe BP |
8944 | return OFPERR_OFPBRC_BAD_LEN; |
8945 | } | |
8946 | ofpbuf_pull(msg, len - sizeof *qs14); | |
8947 | ||
8948 | /* No properties yet defined, so ignore them for now. */ | |
8949 | ||
8950 | return ofputil_queue_stats_from_ofp13(oqs, &qs14->qs); | |
8951 | } | |
8952 | ||
64626975 SH |
8953 | /* Converts an OFPST_QUEUE_STATS reply in 'msg' into an abstract |
8954 | * ofputil_queue_stats in 'qs'. | |
8955 | * | |
8956 | * Multiple OFPST_QUEUE_STATS replies can be packed into a single OpenFlow | |
8957 | * message. Calling this function multiple times for a single 'msg' iterates | |
8958 | * through the replies. The caller must initially leave 'msg''s layer pointers | |
8959 | * null and not modify them between calls. | |
8960 | * | |
8961 | * Returns 0 if successful, EOF if no replies were left in this 'msg', | |
8962 | * otherwise a positive errno value. */ | |
8963 | int | |
8964 | ofputil_decode_queue_stats(struct ofputil_queue_stats *qs, struct ofpbuf *msg) | |
8965 | { | |
8966 | enum ofperr error; | |
8967 | enum ofpraw raw; | |
8968 | ||
6fd6ed71 | 8969 | error = (msg->header ? ofpraw_decode(&raw, msg->header) |
64626975 SH |
8970 | : ofpraw_pull(&raw, msg)); |
8971 | if (error) { | |
8972 | return error; | |
8973 | } | |
8974 | ||
6fd6ed71 | 8975 | if (!msg->size) { |
64626975 | 8976 | return EOF; |
1bb2cdbe BP |
8977 | } else if (raw == OFPRAW_OFPST14_QUEUE_REPLY) { |
8978 | return ofputil_pull_ofp14_queue_stats(qs, msg); | |
2e1ae200 JR |
8979 | } else if (raw == OFPRAW_OFPST13_QUEUE_REPLY) { |
8980 | const struct ofp13_queue_stats *qs13; | |
8981 | ||
8982 | qs13 = ofpbuf_try_pull(msg, sizeof *qs13); | |
8983 | if (!qs13) { | |
8984 | goto bad_len; | |
8985 | } | |
8986 | return ofputil_queue_stats_from_ofp13(qs, qs13); | |
64626975 SH |
8987 | } else if (raw == OFPRAW_OFPST11_QUEUE_REPLY) { |
8988 | const struct ofp11_queue_stats *qs11; | |
8989 | ||
8990 | qs11 = ofpbuf_try_pull(msg, sizeof *qs11); | |
8991 | if (!qs11) { | |
2e1ae200 | 8992 | goto bad_len; |
64626975 SH |
8993 | } |
8994 | return ofputil_queue_stats_from_ofp11(qs, qs11); | |
8995 | } else if (raw == OFPRAW_OFPST10_QUEUE_REPLY) { | |
8996 | const struct ofp10_queue_stats *qs10; | |
8997 | ||
8998 | qs10 = ofpbuf_try_pull(msg, sizeof *qs10); | |
8999 | if (!qs10) { | |
2e1ae200 | 9000 | goto bad_len; |
64626975 SH |
9001 | } |
9002 | return ofputil_queue_stats_from_ofp10(qs, qs10); | |
9003 | } else { | |
428b2edd | 9004 | OVS_NOT_REACHED(); |
64626975 | 9005 | } |
2e1ae200 JR |
9006 | |
9007 | bad_len: | |
437d0d22 | 9008 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_QUEUE reply has %"PRIu32" leftover " |
6fd6ed71 | 9009 | "bytes at end", msg->size); |
2e1ae200 | 9010 | return OFPERR_OFPBRC_BAD_LEN; |
64626975 SH |
9011 | } |
9012 | ||
9013 | static void | |
9014 | ofputil_queue_stats_to_ofp10(const struct ofputil_queue_stats *oqs, | |
9015 | struct ofp10_queue_stats *qs10) | |
9016 | { | |
4e022ec0 | 9017 | qs10->port_no = htons(ofp_to_u16(oqs->port_no)); |
64626975 SH |
9018 | memset(qs10->pad, 0, sizeof qs10->pad); |
9019 | qs10->queue_id = htonl(oqs->queue_id); | |
6dc34a0d BP |
9020 | put_32aligned_be64(&qs10->tx_bytes, htonll(oqs->tx_bytes)); |
9021 | put_32aligned_be64(&qs10->tx_packets, htonll(oqs->tx_packets)); | |
9022 | put_32aligned_be64(&qs10->tx_errors, htonll(oqs->tx_errors)); | |
64626975 SH |
9023 | } |
9024 | ||
9025 | static void | |
9026 | ofputil_queue_stats_to_ofp11(const struct ofputil_queue_stats *oqs, | |
9027 | struct ofp11_queue_stats *qs11) | |
9028 | { | |
9029 | qs11->port_no = ofputil_port_to_ofp11(oqs->port_no); | |
9030 | qs11->queue_id = htonl(oqs->queue_id); | |
6dc34a0d BP |
9031 | qs11->tx_bytes = htonll(oqs->tx_bytes); |
9032 | qs11->tx_packets = htonll(oqs->tx_packets); | |
9033 | qs11->tx_errors = htonll(oqs->tx_errors); | |
64626975 SH |
9034 | } |
9035 | ||
2e1ae200 JR |
9036 | static void |
9037 | ofputil_queue_stats_to_ofp13(const struct ofputil_queue_stats *oqs, | |
9038 | struct ofp13_queue_stats *qs13) | |
9039 | { | |
9040 | ofputil_queue_stats_to_ofp11(oqs, &qs13->qs); | |
6dc34a0d BP |
9041 | if (oqs->duration_sec != UINT32_MAX) { |
9042 | qs13->duration_sec = htonl(oqs->duration_sec); | |
9043 | qs13->duration_nsec = htonl(oqs->duration_nsec); | |
9044 | } else { | |
b8266395 BP |
9045 | qs13->duration_sec = OVS_BE32_MAX; |
9046 | qs13->duration_nsec = OVS_BE32_MAX; | |
6dc34a0d | 9047 | } |
2e1ae200 JR |
9048 | } |
9049 | ||
1bb2cdbe BP |
9050 | static void |
9051 | ofputil_queue_stats_to_ofp14(const struct ofputil_queue_stats *oqs, | |
9052 | struct ofp14_queue_stats *qs14) | |
9053 | { | |
9054 | qs14->length = htons(sizeof *qs14); | |
9055 | memset(qs14->pad, 0, sizeof qs14->pad); | |
9056 | ofputil_queue_stats_to_ofp13(oqs, &qs14->qs); | |
9057 | } | |
9058 | ||
9059 | ||
64626975 SH |
9060 | /* Encode a queue stat for 'oqs' and append it to 'replies'. */ |
9061 | void | |
ca6ba700 | 9062 | ofputil_append_queue_stat(struct ovs_list *replies, |
64626975 SH |
9063 | const struct ofputil_queue_stats *oqs) |
9064 | { | |
e28ac5cf | 9065 | switch (ofpmp_version(replies)) { |
2e1ae200 JR |
9066 | case OFP13_VERSION: { |
9067 | struct ofp13_queue_stats *reply = ofpmp_append(replies, sizeof *reply); | |
9068 | ofputil_queue_stats_to_ofp13(oqs, reply); | |
9069 | break; | |
9070 | } | |
9071 | ||
64626975 SH |
9072 | case OFP12_VERSION: |
9073 | case OFP11_VERSION: { | |
2e1ae200 | 9074 | struct ofp11_queue_stats *reply = ofpmp_append(replies, sizeof *reply); |
64626975 SH |
9075 | ofputil_queue_stats_to_ofp11(oqs, reply); |
9076 | break; | |
9077 | } | |
9078 | ||
9079 | case OFP10_VERSION: { | |
2e1ae200 | 9080 | struct ofp10_queue_stats *reply = ofpmp_append(replies, sizeof *reply); |
64626975 SH |
9081 | ofputil_queue_stats_to_ofp10(oqs, reply); |
9082 | break; | |
9083 | } | |
9084 | ||
42dccab5 BP |
9085 | case OFP14_VERSION: |
9086 | case OFP15_VERSION: { | |
1bb2cdbe BP |
9087 | struct ofp14_queue_stats *reply = ofpmp_append(replies, sizeof *reply); |
9088 | ofputil_queue_stats_to_ofp14(oqs, reply); | |
c37c0382 | 9089 | break; |
1bb2cdbe | 9090 | } |
c37c0382 | 9091 | |
64626975 | 9092 | default: |
428b2edd | 9093 | OVS_NOT_REACHED(); |
64626975 SH |
9094 | } |
9095 | } | |
777af88d AC |
9096 | |
9097 | enum ofperr | |
9098 | ofputil_decode_bundle_ctrl(const struct ofp_header *oh, | |
9099 | struct ofputil_bundle_ctrl_msg *msg) | |
9100 | { | |
9101 | struct ofpbuf b; | |
9102 | enum ofpraw raw; | |
9103 | const struct ofp14_bundle_ctrl_msg *m; | |
9104 | ||
9105 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
9106 | raw = ofpraw_pull_assert(&b); | |
9107 | ovs_assert(raw == OFPRAW_OFPT14_BUNDLE_CONTROL); | |
9108 | ||
6fd6ed71 | 9109 | m = b.msg; |
777af88d AC |
9110 | msg->bundle_id = ntohl(m->bundle_id); |
9111 | msg->type = ntohs(m->type); | |
9112 | msg->flags = ntohs(m->flags); | |
9113 | ||
9114 | return 0; | |
9115 | } | |
9116 | ||
db5076ee JR |
9117 | struct ofpbuf * |
9118 | ofputil_encode_bundle_ctrl_request(enum ofp_version ofp_version, | |
9119 | struct ofputil_bundle_ctrl_msg *bc) | |
9120 | { | |
9121 | struct ofpbuf *request; | |
9122 | struct ofp14_bundle_ctrl_msg *m; | |
9123 | ||
9124 | switch (ofp_version) { | |
9125 | case OFP10_VERSION: | |
9126 | case OFP11_VERSION: | |
9127 | case OFP12_VERSION: | |
9128 | case OFP13_VERSION: | |
9129 | ovs_fatal(0, "bundles need OpenFlow 1.4 or later " | |
9130 | "(\'-O OpenFlow14\')"); | |
9131 | case OFP14_VERSION: | |
9132 | case OFP15_VERSION: | |
9133 | request = ofpraw_alloc(OFPRAW_OFPT14_BUNDLE_CONTROL, ofp_version, 0); | |
9134 | m = ofpbuf_put_zeros(request, sizeof *m); | |
9135 | ||
9136 | m->bundle_id = htonl(bc->bundle_id); | |
9137 | m->type = htons(bc->type); | |
9138 | m->flags = htons(bc->flags); | |
9139 | break; | |
9140 | default: | |
9141 | OVS_NOT_REACHED(); | |
9142 | } | |
9143 | ||
9144 | return request; | |
9145 | } | |
9146 | ||
777af88d AC |
9147 | struct ofpbuf * |
9148 | ofputil_encode_bundle_ctrl_reply(const struct ofp_header *oh, | |
9149 | struct ofputil_bundle_ctrl_msg *msg) | |
9150 | { | |
9151 | struct ofpbuf *buf; | |
9152 | struct ofp14_bundle_ctrl_msg *m; | |
9153 | ||
9154 | buf = ofpraw_alloc_reply(OFPRAW_OFPT14_BUNDLE_CONTROL, oh, 0); | |
9155 | m = ofpbuf_put_zeros(buf, sizeof *m); | |
9156 | ||
9157 | m->bundle_id = htonl(msg->bundle_id); | |
9158 | m->type = htons(msg->type); | |
9159 | m->flags = htons(msg->flags); | |
9160 | ||
9161 | return buf; | |
9162 | } | |
9163 | ||
c25ce22d JR |
9164 | /* Return true for bundlable state change requests, false for other messages. |
9165 | */ | |
9166 | static bool | |
9167 | ofputil_is_bundlable(enum ofptype type) | |
9168 | { | |
9169 | switch (type) { | |
9170 | /* Minimum required by OpenFlow 1.4. */ | |
9171 | case OFPTYPE_PORT_MOD: | |
9172 | case OFPTYPE_FLOW_MOD: | |
9173 | return true; | |
9174 | ||
9175 | /* Nice to have later. */ | |
9176 | case OFPTYPE_FLOW_MOD_TABLE_ID: | |
9177 | case OFPTYPE_GROUP_MOD: | |
9178 | case OFPTYPE_TABLE_MOD: | |
9179 | case OFPTYPE_METER_MOD: | |
9180 | case OFPTYPE_PACKET_OUT: | |
4e548ad9 | 9181 | case OFPTYPE_NXT_TLV_TABLE_MOD: |
c25ce22d JR |
9182 | |
9183 | /* Not to be bundlable. */ | |
9184 | case OFPTYPE_ECHO_REQUEST: | |
9185 | case OFPTYPE_FEATURES_REQUEST: | |
9186 | case OFPTYPE_GET_CONFIG_REQUEST: | |
9187 | case OFPTYPE_SET_CONFIG: | |
9188 | case OFPTYPE_BARRIER_REQUEST: | |
9189 | case OFPTYPE_ROLE_REQUEST: | |
9190 | case OFPTYPE_ECHO_REPLY: | |
9191 | case OFPTYPE_SET_FLOW_FORMAT: | |
9192 | case OFPTYPE_SET_PACKET_IN_FORMAT: | |
9193 | case OFPTYPE_SET_CONTROLLER_ID: | |
9194 | case OFPTYPE_FLOW_AGE: | |
9195 | case OFPTYPE_FLOW_MONITOR_CANCEL: | |
9196 | case OFPTYPE_SET_ASYNC_CONFIG: | |
9197 | case OFPTYPE_GET_ASYNC_REQUEST: | |
9198 | case OFPTYPE_DESC_STATS_REQUEST: | |
9199 | case OFPTYPE_FLOW_STATS_REQUEST: | |
9200 | case OFPTYPE_AGGREGATE_STATS_REQUEST: | |
9201 | case OFPTYPE_TABLE_STATS_REQUEST: | |
9202 | case OFPTYPE_TABLE_FEATURES_STATS_REQUEST: | |
03c72922 | 9203 | case OFPTYPE_TABLE_DESC_REQUEST: |
c25ce22d JR |
9204 | case OFPTYPE_PORT_STATS_REQUEST: |
9205 | case OFPTYPE_QUEUE_STATS_REQUEST: | |
9206 | case OFPTYPE_PORT_DESC_STATS_REQUEST: | |
9207 | case OFPTYPE_FLOW_MONITOR_STATS_REQUEST: | |
9208 | case OFPTYPE_METER_STATS_REQUEST: | |
9209 | case OFPTYPE_METER_CONFIG_STATS_REQUEST: | |
9210 | case OFPTYPE_METER_FEATURES_STATS_REQUEST: | |
9211 | case OFPTYPE_GROUP_STATS_REQUEST: | |
9212 | case OFPTYPE_GROUP_DESC_STATS_REQUEST: | |
9213 | case OFPTYPE_GROUP_FEATURES_STATS_REQUEST: | |
9214 | case OFPTYPE_QUEUE_GET_CONFIG_REQUEST: | |
9215 | case OFPTYPE_BUNDLE_CONTROL: | |
9216 | case OFPTYPE_BUNDLE_ADD_MESSAGE: | |
9217 | case OFPTYPE_HELLO: | |
9218 | case OFPTYPE_ERROR: | |
9219 | case OFPTYPE_FEATURES_REPLY: | |
9220 | case OFPTYPE_GET_CONFIG_REPLY: | |
9221 | case OFPTYPE_PACKET_IN: | |
9222 | case OFPTYPE_FLOW_REMOVED: | |
9223 | case OFPTYPE_PORT_STATUS: | |
9224 | case OFPTYPE_BARRIER_REPLY: | |
9225 | case OFPTYPE_QUEUE_GET_CONFIG_REPLY: | |
9226 | case OFPTYPE_DESC_STATS_REPLY: | |
9227 | case OFPTYPE_FLOW_STATS_REPLY: | |
9228 | case OFPTYPE_QUEUE_STATS_REPLY: | |
9229 | case OFPTYPE_PORT_STATS_REPLY: | |
9230 | case OFPTYPE_TABLE_STATS_REPLY: | |
9231 | case OFPTYPE_AGGREGATE_STATS_REPLY: | |
9232 | case OFPTYPE_PORT_DESC_STATS_REPLY: | |
9233 | case OFPTYPE_ROLE_REPLY: | |
9234 | case OFPTYPE_FLOW_MONITOR_PAUSED: | |
9235 | case OFPTYPE_FLOW_MONITOR_RESUMED: | |
9236 | case OFPTYPE_FLOW_MONITOR_STATS_REPLY: | |
9237 | case OFPTYPE_GET_ASYNC_REPLY: | |
9238 | case OFPTYPE_GROUP_STATS_REPLY: | |
9239 | case OFPTYPE_GROUP_DESC_STATS_REPLY: | |
9240 | case OFPTYPE_GROUP_FEATURES_STATS_REPLY: | |
9241 | case OFPTYPE_METER_STATS_REPLY: | |
9242 | case OFPTYPE_METER_CONFIG_STATS_REPLY: | |
9243 | case OFPTYPE_METER_FEATURES_STATS_REPLY: | |
9244 | case OFPTYPE_TABLE_FEATURES_STATS_REPLY: | |
03c72922 | 9245 | case OFPTYPE_TABLE_DESC_REPLY: |
c25ce22d | 9246 | case OFPTYPE_ROLE_STATUS: |
3c35db62 | 9247 | case OFPTYPE_REQUESTFORWARD: |
4e548ad9 ML |
9248 | case OFPTYPE_NXT_TLV_TABLE_REQUEST: |
9249 | case OFPTYPE_NXT_TLV_TABLE_REPLY: | |
c25ce22d JR |
9250 | break; |
9251 | } | |
9252 | ||
9253 | return false; | |
9254 | } | |
9255 | ||
777af88d AC |
9256 | enum ofperr |
9257 | ofputil_decode_bundle_add(const struct ofp_header *oh, | |
7ac27a04 JR |
9258 | struct ofputil_bundle_add_msg *msg, |
9259 | enum ofptype *type_ptr) | |
777af88d AC |
9260 | { |
9261 | const struct ofp14_bundle_ctrl_msg *m; | |
9262 | struct ofpbuf b; | |
9263 | enum ofpraw raw; | |
9264 | size_t inner_len; | |
c25ce22d JR |
9265 | enum ofperr error; |
9266 | enum ofptype type; | |
777af88d AC |
9267 | |
9268 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
9269 | raw = ofpraw_pull_assert(&b); | |
9270 | ovs_assert(raw == OFPRAW_OFPT14_BUNDLE_ADD_MESSAGE); | |
9271 | ||
9272 | m = ofpbuf_pull(&b, sizeof *m); | |
9273 | msg->bundle_id = ntohl(m->bundle_id); | |
9274 | msg->flags = ntohs(m->flags); | |
9275 | ||
6fd6ed71 | 9276 | msg->msg = b.data; |
46be7132 BP |
9277 | if (msg->msg->version != oh->version) { |
9278 | return OFPERR_NXBFC_BAD_VERSION; | |
9279 | } | |
777af88d | 9280 | inner_len = ntohs(msg->msg->length); |
6fd6ed71 | 9281 | if (inner_len < sizeof(struct ofp_header) || inner_len > b.size) { |
777af88d AC |
9282 | return OFPERR_OFPBFC_MSG_BAD_LEN; |
9283 | } | |
be6f6393 JR |
9284 | if (msg->msg->xid != oh->xid) { |
9285 | return OFPERR_OFPBFC_MSG_BAD_XID; | |
9286 | } | |
777af88d | 9287 | |
c25ce22d | 9288 | /* Reject unbundlable messages. */ |
7ac27a04 JR |
9289 | if (!type_ptr) { |
9290 | type_ptr = &type; | |
9291 | } | |
9292 | error = ofptype_decode(type_ptr, msg->msg); | |
c25ce22d JR |
9293 | if (error) { |
9294 | VLOG_WARN_RL(&bad_ofmsg_rl, "OFPT14_BUNDLE_ADD_MESSAGE contained " | |
9295 | "message is unparsable (%s)", ofperr_get_name(error)); | |
9296 | return OFPERR_OFPBFC_MSG_UNSUP; /* 'error' would be confusing. */ | |
9297 | } | |
9298 | ||
7ac27a04 | 9299 | if (!ofputil_is_bundlable(*type_ptr)) { |
44648b0f BP |
9300 | VLOG_WARN_RL(&bad_ofmsg_rl, "%s message not allowed inside " |
9301 | "OFPT14_BUNDLE_ADD_MESSAGE", ofptype_get_name(*type_ptr)); | |
c25ce22d JR |
9302 | return OFPERR_OFPBFC_MSG_UNSUP; |
9303 | } | |
9304 | ||
777af88d AC |
9305 | return 0; |
9306 | } | |
9307 | ||
9308 | struct ofpbuf * | |
9309 | ofputil_encode_bundle_add(enum ofp_version ofp_version, | |
9310 | struct ofputil_bundle_add_msg *msg) | |
9311 | { | |
9312 | struct ofpbuf *request; | |
9313 | struct ofp14_bundle_ctrl_msg *m; | |
9314 | ||
7b3dca89 JR |
9315 | /* Must use the same xid as the embedded message. */ |
9316 | request = ofpraw_alloc_xid(OFPRAW_OFPT14_BUNDLE_ADD_MESSAGE, ofp_version, | |
9317 | msg->msg->xid, 0); | |
777af88d AC |
9318 | m = ofpbuf_put_zeros(request, sizeof *m); |
9319 | ||
9320 | m->bundle_id = htonl(msg->bundle_id); | |
9321 | m->flags = htons(msg->flags); | |
9322 | ofpbuf_put(request, msg->msg, ntohs(msg->msg->length)); | |
9323 | ||
9324 | return request; | |
9325 | } | |
6159c531 JG |
9326 | |
9327 | static void | |
4e548ad9 | 9328 | encode_tlv_table_mappings(struct ofpbuf *b, struct ovs_list *mappings) |
6159c531 | 9329 | { |
4e548ad9 | 9330 | struct ofputil_tlv_map *map; |
6159c531 JG |
9331 | |
9332 | LIST_FOR_EACH (map, list_node, mappings) { | |
4e548ad9 | 9333 | struct nx_tlv_map *nx_map; |
6159c531 JG |
9334 | |
9335 | nx_map = ofpbuf_put_zeros(b, sizeof *nx_map); | |
9336 | nx_map->option_class = htons(map->option_class); | |
9337 | nx_map->option_type = map->option_type; | |
9338 | nx_map->option_len = map->option_len; | |
9339 | nx_map->index = htons(map->index); | |
9340 | } | |
9341 | } | |
9342 | ||
9343 | struct ofpbuf * | |
4e548ad9 ML |
9344 | ofputil_encode_tlv_table_mod(enum ofp_version ofp_version, |
9345 | struct ofputil_tlv_table_mod *ttm) | |
6159c531 JG |
9346 | { |
9347 | struct ofpbuf *b; | |
4e548ad9 | 9348 | struct nx_tlv_table_mod *nx_ttm; |
6159c531 | 9349 | |
4e548ad9 ML |
9350 | b = ofpraw_alloc(OFPRAW_NXT_TLV_TABLE_MOD, ofp_version, 0); |
9351 | nx_ttm = ofpbuf_put_zeros(b, sizeof *nx_ttm); | |
9352 | nx_ttm->command = htons(ttm->command); | |
9353 | encode_tlv_table_mappings(b, &ttm->mappings); | |
6159c531 JG |
9354 | |
9355 | return b; | |
9356 | } | |
9357 | ||
9358 | static enum ofperr | |
4e548ad9 | 9359 | decode_tlv_table_mappings(struct ofpbuf *msg, unsigned int max_fields, |
dfe5044c | 9360 | struct ovs_list *mappings) |
6159c531 JG |
9361 | { |
9362 | list_init(mappings); | |
9363 | ||
9364 | while (msg->size) { | |
4e548ad9 ML |
9365 | struct nx_tlv_map *nx_map; |
9366 | struct ofputil_tlv_map *map; | |
6159c531 JG |
9367 | |
9368 | nx_map = ofpbuf_pull(msg, sizeof *nx_map); | |
9369 | map = xmalloc(sizeof *map); | |
9370 | list_push_back(mappings, &map->list_node); | |
9371 | ||
9372 | map->option_class = ntohs(nx_map->option_class); | |
9373 | map->option_type = nx_map->option_type; | |
9374 | ||
9375 | map->option_len = nx_map->option_len; | |
4e548ad9 | 9376 | if (map->option_len % 4 || map->option_len > TLV_MAX_OPT_SIZE) { |
6159c531 | 9377 | VLOG_WARN_RL(&bad_ofmsg_rl, |
4e548ad9 | 9378 | "tlv table option length (%u) is not a valid option size", |
6159c531 | 9379 | map->option_len); |
4e548ad9 ML |
9380 | ofputil_uninit_tlv_table(mappings); |
9381 | return OFPERR_NXTTMFC_BAD_OPT_LEN; | |
6159c531 JG |
9382 | } |
9383 | ||
9384 | map->index = ntohs(nx_map->index); | |
dfe5044c | 9385 | if (map->index >= max_fields) { |
6159c531 | 9386 | VLOG_WARN_RL(&bad_ofmsg_rl, |
4e548ad9 | 9387 | "tlv table field index (%u) is too large (max %u)", |
dfe5044c | 9388 | map->index, max_fields - 1); |
4e548ad9 ML |
9389 | ofputil_uninit_tlv_table(mappings); |
9390 | return OFPERR_NXTTMFC_BAD_FIELD_IDX; | |
6159c531 JG |
9391 | } |
9392 | } | |
9393 | ||
9394 | return 0; | |
9395 | } | |
9396 | ||
9397 | enum ofperr | |
4e548ad9 ML |
9398 | ofputil_decode_tlv_table_mod(const struct ofp_header *oh, |
9399 | struct ofputil_tlv_table_mod *ttm) | |
6159c531 JG |
9400 | { |
9401 | struct ofpbuf msg; | |
4e548ad9 | 9402 | struct nx_tlv_table_mod *nx_ttm; |
6159c531 JG |
9403 | |
9404 | ofpbuf_use_const(&msg, oh, ntohs(oh->length)); | |
9405 | ofpraw_pull_assert(&msg); | |
9406 | ||
4e548ad9 ML |
9407 | nx_ttm = ofpbuf_pull(&msg, sizeof *nx_ttm); |
9408 | ttm->command = ntohs(nx_ttm->command); | |
9409 | if (ttm->command > NXTTMC_CLEAR) { | |
6159c531 | 9410 | VLOG_WARN_RL(&bad_ofmsg_rl, |
4e548ad9 ML |
9411 | "tlv table mod command (%u) is out of range", |
9412 | ttm->command); | |
9413 | return OFPERR_NXTTMFC_BAD_COMMAND; | |
6159c531 JG |
9414 | } |
9415 | ||
4e548ad9 ML |
9416 | return decode_tlv_table_mappings(&msg, TUN_METADATA_NUM_OPTS, |
9417 | &ttm->mappings); | |
6159c531 JG |
9418 | } |
9419 | ||
9420 | struct ofpbuf * | |
4e548ad9 ML |
9421 | ofputil_encode_tlv_table_reply(const struct ofp_header *oh, |
9422 | struct ofputil_tlv_table_reply *ttr) | |
6159c531 JG |
9423 | { |
9424 | struct ofpbuf *b; | |
4e548ad9 | 9425 | struct nx_tlv_table_reply *nx_ttr; |
6159c531 | 9426 | |
4e548ad9 ML |
9427 | b = ofpraw_alloc_reply(OFPRAW_NXT_TLV_TABLE_REPLY, oh, 0); |
9428 | nx_ttr = ofpbuf_put_zeros(b, sizeof *nx_ttr); | |
9429 | nx_ttr->max_option_space = htonl(ttr->max_option_space); | |
9430 | nx_ttr->max_fields = htons(ttr->max_fields); | |
6159c531 | 9431 | |
4e548ad9 | 9432 | encode_tlv_table_mappings(b, &ttr->mappings); |
6159c531 JG |
9433 | |
9434 | return b; | |
9435 | } | |
9436 | ||
4e548ad9 | 9437 | /* Decodes the NXT_TLV_TABLE_REPLY message in 'oh' into '*ttr'. Returns 0 |
dfe5044c BP |
9438 | * if successful, otherwise an ofperr. |
9439 | * | |
4e548ad9 ML |
9440 | * The decoder verifies that the indexes in 'ttr->mappings' are less than |
9441 | * 'ttr->max_fields', but the caller must ensure, if necessary, that they are | |
dfe5044c | 9442 | * less than TUN_METADATA_NUM_OPTS. */ |
6159c531 | 9443 | enum ofperr |
4e548ad9 ML |
9444 | ofputil_decode_tlv_table_reply(const struct ofp_header *oh, |
9445 | struct ofputil_tlv_table_reply *ttr) | |
6159c531 JG |
9446 | { |
9447 | struct ofpbuf msg; | |
4e548ad9 | 9448 | struct nx_tlv_table_reply *nx_ttr; |
6159c531 JG |
9449 | |
9450 | ofpbuf_use_const(&msg, oh, ntohs(oh->length)); | |
9451 | ofpraw_pull_assert(&msg); | |
9452 | ||
4e548ad9 ML |
9453 | nx_ttr = ofpbuf_pull(&msg, sizeof *nx_ttr); |
9454 | ttr->max_option_space = ntohl(nx_ttr->max_option_space); | |
9455 | ttr->max_fields = ntohs(nx_ttr->max_fields); | |
6159c531 | 9456 | |
4e548ad9 | 9457 | return decode_tlv_table_mappings(&msg, ttr->max_fields, &ttr->mappings); |
6159c531 JG |
9458 | } |
9459 | ||
9460 | void | |
4e548ad9 | 9461 | ofputil_uninit_tlv_table(struct ovs_list *mappings) |
6159c531 | 9462 | { |
4e548ad9 | 9463 | struct ofputil_tlv_map *map; |
6159c531 JG |
9464 | |
9465 | LIST_FOR_EACH_POP (map, list_node, mappings) { | |
9466 | free(map); | |
9467 | } | |
9468 | } | |
98090482 | 9469 | |
2da7974c BP |
9470 | const char * |
9471 | ofputil_async_msg_type_to_string(enum ofputil_async_msg_type type) | |
9472 | { | |
9473 | switch (type) { | |
9474 | case OAM_PACKET_IN: return "PACKET_IN"; | |
9475 | case OAM_PORT_STATUS: return "PORT_STATUS"; | |
9476 | case OAM_FLOW_REMOVED: return "FLOW_REMOVED"; | |
9477 | case OAM_ROLE_STATUS: return "ROLE_STATUS"; | |
9478 | case OAM_TABLE_STATUS: return "TABLE_STATUS"; | |
9479 | case OAM_REQUESTFORWARD: return "REQUESTFORWARD"; | |
9480 | ||
9481 | case OAM_N_TYPES: | |
9482 | default: | |
9483 | OVS_NOT_REACHED(); | |
9484 | } | |
9485 | } | |
9486 | ||
98090482 | 9487 | /* Decodes the OpenFlow "set async config" request and "get async config |
a930d4c5 | 9488 | * reply" message in '*oh' into an abstract form in 'ac'. |
98090482 NR |
9489 | * |
9490 | * If 'loose' is true, this function ignores properties and values that it does | |
9491 | * not understand, as a controller would want to do when interpreting | |
9492 | * capabilities provided by a switch. If 'loose' is false, this function | |
9493 | * treats unknown properties and values as an error, as a switch would want to | |
9494 | * do when interpreting a configuration request made by a controller. | |
9495 | * | |
d18cc1ee AA |
9496 | * Returns 0 if successful, otherwise an OFPERR_* value. |
9497 | * | |
9498 | * Returns error code OFPERR_OFPACFC_INVALID if the value of mask is not in | |
9499 | * the valid range of mask. | |
9500 | * | |
9501 | * Returns error code OFPERR_OFPACFC_UNSUPPORTED if the configuration is not | |
9502 | * supported.*/ | |
98090482 | 9503 | enum ofperr |
a930d4c5 BP |
9504 | ofputil_decode_set_async_config(const struct ofp_header *oh, bool loose, |
9505 | struct ofputil_async_cfg *ac) | |
98090482 NR |
9506 | { |
9507 | enum ofpraw raw; | |
9508 | struct ofpbuf b; | |
9509 | ||
9510 | ofpbuf_use_const(&b, oh, ntohs(oh->length)); | |
9511 | raw = ofpraw_pull_assert(&b); | |
9512 | ||
9513 | if (raw == OFPRAW_OFPT13_SET_ASYNC || | |
9514 | raw == OFPRAW_NXT_SET_ASYNC_CONFIG || | |
9515 | raw == OFPRAW_OFPT13_GET_ASYNC_REPLY) { | |
9516 | const struct nx_async_config *msg = ofpmsg_body(oh); | |
9517 | ||
a930d4c5 BP |
9518 | ac->master[OAM_PACKET_IN] = ntohl(msg->packet_in_mask[0]); |
9519 | ac->master[OAM_PORT_STATUS] = ntohl(msg->port_status_mask[0]); | |
9520 | ac->master[OAM_FLOW_REMOVED] = ntohl(msg->flow_removed_mask[0]); | |
98090482 | 9521 | |
a930d4c5 BP |
9522 | ac->slave[OAM_PACKET_IN] = ntohl(msg->packet_in_mask[1]); |
9523 | ac->slave[OAM_PORT_STATUS] = ntohl(msg->port_status_mask[1]); | |
9524 | ac->slave[OAM_FLOW_REMOVED] = ntohl(msg->flow_removed_mask[1]); | |
98090482 NR |
9525 | } else if (raw == OFPRAW_OFPT14_SET_ASYNC || |
9526 | raw == OFPRAW_OFPT14_GET_ASYNC_REPLY) { | |
9527 | ||
9528 | while (b.size > 0) { | |
98090482 NR |
9529 | struct ofpbuf property; |
9530 | enum ofperr error; | |
34a543e3 | 9531 | uint64_t type; |
b611d3ac | 9532 | uint32_t mask; |
98090482 | 9533 | |
34a543e3 | 9534 | error = ofpprop_pull__(&b, &property, 8, 0xfffe, &type); |
98090482 NR |
9535 | if (error) { |
9536 | return error; | |
9537 | } | |
9538 | ||
b611d3ac BP |
9539 | error = ofpprop_parse_u32(&property, &mask); |
9540 | if (error) { | |
9541 | return error; | |
98090482 NR |
9542 | } |
9543 | ||
d18cc1ee | 9544 | if (!loose) { |
b611d3ac | 9545 | error = ofputil_check_mask(type, mask); |
d18cc1ee AA |
9546 | if (error) { |
9547 | return error; | |
9548 | } | |
9549 | } | |
9550 | ||
98090482 NR |
9551 | switch (type) { |
9552 | case OFPACPT_PACKET_IN_SLAVE: | |
a930d4c5 | 9553 | ac->slave[OAM_PACKET_IN] = mask; |
98090482 NR |
9554 | break; |
9555 | ||
9556 | case OFPACPT_PACKET_IN_MASTER: | |
a930d4c5 | 9557 | ac->master[OAM_PACKET_IN] = mask; |
98090482 NR |
9558 | break; |
9559 | ||
9560 | case OFPACPT_PORT_STATUS_SLAVE: | |
a930d4c5 | 9561 | ac->slave[OAM_PORT_STATUS] = mask; |
98090482 NR |
9562 | break; |
9563 | ||
9564 | case OFPACPT_PORT_STATUS_MASTER: | |
a930d4c5 | 9565 | ac->master[OAM_PORT_STATUS] = mask; |
98090482 NR |
9566 | break; |
9567 | ||
9568 | case OFPACPT_FLOW_REMOVED_SLAVE: | |
a930d4c5 | 9569 | ac->slave[OAM_FLOW_REMOVED] = mask; |
98090482 NR |
9570 | break; |
9571 | ||
9572 | case OFPACPT_FLOW_REMOVED_MASTER: | |
a930d4c5 | 9573 | ac->master[OAM_FLOW_REMOVED] = mask; |
98090482 NR |
9574 | break; |
9575 | ||
9576 | case OFPACPT_ROLE_STATUS_SLAVE: | |
a930d4c5 | 9577 | ac->slave[OAM_ROLE_STATUS] = mask; |
98090482 NR |
9578 | break; |
9579 | ||
9580 | case OFPACPT_ROLE_STATUS_MASTER: | |
a930d4c5 | 9581 | ac->master[OAM_ROLE_STATUS] = mask; |
98090482 NR |
9582 | break; |
9583 | ||
9584 | case OFPACPT_TABLE_STATUS_SLAVE: | |
a930d4c5 | 9585 | ac->slave[OAM_TABLE_STATUS] = mask; |
98090482 NR |
9586 | break; |
9587 | ||
9588 | case OFPACPT_TABLE_STATUS_MASTER: | |
a930d4c5 | 9589 | ac->master[OAM_TABLE_STATUS] = mask; |
98090482 NR |
9590 | break; |
9591 | ||
9592 | case OFPACPT_REQUESTFORWARD_SLAVE: | |
a930d4c5 | 9593 | ac->slave[OAM_REQUESTFORWARD] = mask; |
98090482 NR |
9594 | break; |
9595 | ||
9596 | case OFPACPT_REQUESTFORWARD_MASTER: | |
a930d4c5 | 9597 | ac->master[OAM_REQUESTFORWARD] = mask; |
98090482 NR |
9598 | break; |
9599 | ||
9600 | default: | |
d18cc1ee | 9601 | error = loose ? 0 : OFPERR_OFPACFC_UNSUPPORTED; |
98090482 NR |
9602 | return error; |
9603 | } | |
9604 | } | |
9605 | } else { | |
9606 | return OFPERR_OFPBRC_BAD_VERSION; | |
9607 | } | |
9608 | return 0; | |
9609 | } | |
9610 | ||
9611 | /* Append all asynchronous configuration properties in GET_ASYNC_REPLY | |
9612 | * message, describing if various set of asynchronous messages are enabled | |
9613 | * or not. */ | |
9614 | static enum ofperr | |
9615 | ofputil_get_async_reply(struct ofpbuf *buf, const uint32_t master_mask, | |
9616 | const uint32_t slave_mask, const uint32_t type) | |
9617 | { | |
9618 | int role; | |
9619 | ||
9620 | for (role = 0; role < 2; role++) { | |
b611d3ac | 9621 | enum ofp14_async_config_prop_type prop_type; |
98090482 NR |
9622 | |
9623 | switch (type) { | |
9624 | case OAM_PACKET_IN: | |
b611d3ac BP |
9625 | prop_type = (role ? OFPACPT_PACKET_IN_SLAVE |
9626 | : OFPACPT_PACKET_IN_MASTER); | |
98090482 NR |
9627 | break; |
9628 | ||
9629 | case OAM_PORT_STATUS: | |
b611d3ac BP |
9630 | prop_type = (role ? OFPACPT_PORT_STATUS_SLAVE |
9631 | : OFPACPT_PORT_STATUS_MASTER); | |
98090482 NR |
9632 | break; |
9633 | ||
9634 | case OAM_FLOW_REMOVED: | |
b611d3ac BP |
9635 | prop_type = (role ? OFPACPT_FLOW_REMOVED_SLAVE |
9636 | : OFPACPT_FLOW_REMOVED_MASTER); | |
98090482 NR |
9637 | break; |
9638 | ||
9639 | case OAM_ROLE_STATUS: | |
b611d3ac BP |
9640 | prop_type = (role ? OFPACPT_ROLE_STATUS_SLAVE |
9641 | : OFPACPT_ROLE_STATUS_MASTER); | |
98090482 NR |
9642 | break; |
9643 | ||
9644 | case OAM_TABLE_STATUS: | |
b611d3ac BP |
9645 | prop_type = (role ? OFPACPT_TABLE_STATUS_SLAVE |
9646 | : OFPACPT_TABLE_STATUS_MASTER); | |
98090482 NR |
9647 | break; |
9648 | ||
9649 | case OAM_REQUESTFORWARD: | |
b611d3ac BP |
9650 | prop_type = (role ? OFPACPT_REQUESTFORWARD_SLAVE |
9651 | : OFPACPT_REQUESTFORWARD_MASTER); | |
98090482 NR |
9652 | break; |
9653 | ||
9654 | default: | |
9655 | return OFPERR_OFPBRC_BAD_TYPE; | |
9656 | } | |
b611d3ac | 9657 | ofpprop_put_u32(buf, prop_type, role ? slave_mask : master_mask); |
98090482 NR |
9658 | } |
9659 | ||
9660 | return 0; | |
9661 | } | |
9662 | ||
9663 | /* Returns a OpenFlow message that encodes 'asynchronous configuration' properly | |
9664 | * as a reply to get async config request. */ | |
9665 | struct ofpbuf * | |
9666 | ofputil_encode_get_async_config(const struct ofp_header *oh, | |
a930d4c5 | 9667 | const struct ofputil_async_cfg *ac) |
98090482 NR |
9668 | { |
9669 | struct ofpbuf *buf; | |
9670 | uint32_t type; | |
9671 | ||
9672 | buf = ofpraw_alloc_reply((oh->version < OFP14_VERSION | |
9673 | ? OFPRAW_OFPT13_GET_ASYNC_REPLY | |
9674 | : OFPRAW_OFPT14_GET_ASYNC_REPLY), oh, 0); | |
9675 | ||
9676 | if (oh->version < OFP14_VERSION) { | |
9677 | struct nx_async_config *msg; | |
9678 | msg = ofpbuf_put_zeros(buf, sizeof *msg); | |
9679 | ||
a930d4c5 BP |
9680 | msg->packet_in_mask[0] = htonl(ac->master[OAM_PACKET_IN]); |
9681 | msg->port_status_mask[0] = htonl(ac->master[OAM_PORT_STATUS]); | |
9682 | msg->flow_removed_mask[0] = htonl(ac->master[OAM_FLOW_REMOVED]); | |
98090482 | 9683 | |
a930d4c5 BP |
9684 | msg->packet_in_mask[1] = htonl(ac->slave[OAM_PACKET_IN]); |
9685 | msg->port_status_mask[1] = htonl(ac->slave[OAM_PORT_STATUS]); | |
9686 | msg->flow_removed_mask[1] = htonl(ac->slave[OAM_FLOW_REMOVED]); | |
98090482 NR |
9687 | } else if (oh->version == OFP14_VERSION) { |
9688 | for (type = 0; type < OAM_N_TYPES; type++) { | |
a930d4c5 BP |
9689 | ofputil_get_async_reply(buf, ac->master[type], ac->slave[type], |
9690 | type); | |
98090482 NR |
9691 | } |
9692 | } | |
9693 | ||
9694 | return buf; | |
9695 | } | |
a930d4c5 BP |
9696 | |
9697 | struct ofputil_async_cfg | |
9698 | ofputil_async_cfg_default(enum ofp_version version) | |
9699 | { | |
9700 | return (struct ofputil_async_cfg) { | |
9701 | .master[OAM_PACKET_IN] | |
9702 | = ((version >= OFP14_VERSION ? OFPR14_BITS : OFPR10_BITS) | |
9703 | & ~(1u << OFPR_INVALID_TTL)), | |
9704 | ||
9705 | .master[OAM_FLOW_REMOVED] | |
9706 | = (version >= OFP14_VERSION ? OFPRR14_BITS : OFPRR10_BITS), | |
9707 | ||
9708 | .master[OAM_PORT_STATUS] = OFPPR_BITS, | |
9709 | .slave[OAM_PORT_STATUS] = OFPPR_BITS, | |
9710 | }; | |
9711 | } |